FSJ Fuel Injection Tech

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Last post by Stuka « Tue Apr 16, 2013 6:37 pm

by Stuka » Tue Apr 16, 2013 6:37 pm

Topics that do not fall under this area as described will be moved or deleted. Which ever is more appropriate.

1: Topics or posts which are intended...

0 Replies

13134 Views

Last post by Stuka
Tue Apr 16, 2013 6:37 pm

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Last post

List of LS swaps.

Last post by dodgerammit « Sun Dec 12, 2021 7:49 pm
Replies: 25
by hutcho » Sat Nov 21, 2015 6:14 pm
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So mostly posting this so I can find it from my phone easier later. This is most of the LS swaps and their owners from about 10 pages of build...

Last post

I just finished my baby LS 4.8 swap into mine, but retained the stock 727 and transfer case by using an advance adapter 716131-V.

How did that...
25 Replies

32042 Views

Last post by dodgerammit
Sun Dec 12, 2021 7:49 pm
surge tank versus in fuel tank pump

Last post by Srdayflyer « Sun Jan 22, 2023 5:52 pm
Replies: 5
by marc » Sun Jan 15, 2023 1:50 pm

First post

Contemplating putting fuel injection on my 84 j10. The cranky old BBD carb is frustrating. In my research, I have seen people posting about in line...

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my friend tried the surge tank but had issues with vapor lock, and had problems when he was at ouray 21, at altitudes above 7500 ft, 1 of the...

5 Replies

84 Views

Last post by Srdayflyer
Sun Jan 22, 2023 5:52 pm
Used EFI Purchase

Last post by joeljevning « Fri Jan 13, 2023 9:55 am
Replies: 5
by MilesTexas » Wed Jan 11, 2023 5:42 am

First post

Hey yall,

I have a dude offering to sell a Holley Sniper (just the main bolt on unit with wires attached).

I know I would need the other ends of...

Last post

I purchased one for an AMC from BJ's in March and just received it so know it's aways out from Edelbrock unless you can find one from the batch they...

5 Replies

102 Views

Last post by joeljevning
Fri Jan 13, 2023 9:55 am
Juice worth the squeeze /Sniper 2300 v 4150

Last post by Srdayflyer « Thu Dec 29, 2022 10:21 pm
Replies: 5
by deckside » Tue Dec 13, 2022 10:16 pm

First post

My previous rig I had a 360 and the 4150 mounted to an edelbrock performer intake with hyperspark distributor. will I be underwhelmed if I just bolt...

Last post

i also port matched the sniper to to the factory intake manifold and manifold to the head ports for smooth flow

5 Replies

213 Views

Last post by Srdayflyer
Thu Dec 29, 2022 10:21 pm
Howell TBI idle

Last post by Stuka « Wed Dec 21, 2022 12:28 pm
Replies: 2
by cone » Wed Dec 21, 2022 5:53 am

First post

I am having issues with the idle. On cold start the RPM immediately jumps to 1700 RPM and stays there even after the engine warms up, I have to shut...

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Unplug the IAC and see if the issue changes. When I had an idle air control valve fail on my XJ, I had to drive with it unplugged until a new one...

2 Replies

89 Views

Last post by Stuka
Wed Dec 21, 2022 12:28 pm
Sniper TPS won't go above 62%

Last post by Theduke « Sat Nov 19, 2022 4:34 pm
Replies: 1
by Theduke » Sat Nov 19, 2022 7:10 am

First post

I can find lots of info on setting tps to 0 bit can't find anything in how to get it up to 90+ when the pedal is to the floor. I installed the...

Last post

The more I think about this the more I think its an easy answer that is eluding me.
Feel free to give me the answer and say its obvious.

1 Replies

155 Views

Last post by Theduke
Sat Nov 19, 2022 4:34 pm
Sniper won’t shut off

Last post by tgreese « Sat Nov 12, 2022 10:34 am
Replies: 13
by Anvil-3 » Fri Feb 04, 2022 12:29 pm

First post

Hi everyone,

After a year sitting and getting the Jeep together again I got it fired up on a 2bbl sniper with ignition box and distributor. It’s all...

Last post

Update: Napa says my alternator regulator is bad and I need a new alternator because there should not be a backfeed. Is this napa trying to sell me a...

13 Replies

996 Views

Last post by tgreese
Sat Nov 12, 2022 10:34 am
Swap shops in CO?

Last post by Yeller « Sun Oct 16, 2022 4:45 am
Replies: 18
by jpswapmohn » Sun May 16, 2021 6:11 pm

First post

Hey gang,
I finally have the WT wagoneer in Colorado Springs. It is getting it's first rain while sitting in the driveway right now. It was in my...

Last post

The encryption is well known, better tuners have it figured out it just isn’t cheap, you have to buy a key for every ecm/vin number. Those that are...

18 Replies

1974 Views

Last post by Yeller
Sun Oct 16, 2022 4:45 am
4 cyl EFI, reluctor wheel needed

Last post by tgreese « Tue Oct 11, 2022 11:32 am
Replies: 3
by Xplitive » Tue Aug 30, 2022 7:52 am

First post

Non Jeep but closest equivalent would be an early 4 cylinder Jeep.
Looking to convert distributor from points to magnetic pickup for EFI timing...

Last post

I'd think you'd have your choice of maybe a dozen different reluctor wheels. Any of the V8 wheels would work if you cut off half the arms. It would...

3 Replies

279 Views

Last post by tgreese
Tue Oct 11, 2022 11:32 am
fuel injection

Last post by 83cherokee chief « Tue Aug 09, 2022 3:23 pm
Replies: 18
by 83cherokee chief » Sat Jul 02, 2022 1:21 pm

First post

I am purchasing a complete 4.0, wiring harness and the complete serpentine belt setup from a 1996 grand cherokee. ( for my 1983 cherokee 4.2 ) will...

Last post

rocklaurence, thank you for the heads up about the compression ratio. I believe that it will be ok. Will find out after its running!

18 Replies

891 Views

Last post by 83cherokee chief
Tue Aug 09, 2022 3:23 pm
Sniper hyperspark timing issue Buick 350

Last post by Analog « Fri Apr 08, 2022 9:15 pm
Replies: 5
by Analog » Sun Mar 13, 2022 9:08 pm

First post

Installing Holley hyperspark distributor on my 71 wagoneer with a Buick 350. My maintenance manual says the distributor turns clock wise. So does the...

Last post

“Static timing” in the sniper system locks the timing while you check timing. Once you leave that screen static timing goes away and then your normal...

5 Replies

540 Views

Last post by Analog
Fri Apr 08, 2022 9:15 pm
1991 grand wagoneer 5.3 motor only swap

Last post by dodgerammit « Sun Apr 03, 2022 9:42 pm
Replies: 6
by Jeepfamily » Fri Mar 04, 2022 12:30 am

First post

I had been contemplating on what to do with my grand wagoneer for a couple years. Back story is my grandfather bought it used in 1993 and drove it...

Last post

Update. Been driving it around a fair bit. Did a drive yesterday. Mostly highway 55-60 mph going from 500ft to 1500ft with about 300lb of gear in the...

6 Replies

703 Views

Last post by dodgerammit
Sun Apr 03, 2022 9:42 pm
Holley Sniper EFI and bogging down at 60mph

Last post by az chip « Sat Apr 02, 2022 2:16 pm
Replies: 12
by pacific541 » Wed Sep 08, 2021 10:36 am

First post

So when I am cruising down the road all fat and happy, truck is warm and radio on doing 60MPH, all of a sudden no response from fuel and it acts like...

Last post

So to close this thread out from my original post. I called Ryan and BJ's and went back to a carburetor. It starts every time and runs great!

thank...

12 Replies

1792 Views

Last post by az chip
Sat Apr 02, 2022 2:16 pm
2bbl 2300 series sniper efi

Last post by Analog « Sun Mar 13, 2022 8:36 pm
Replies: 54
by Srdayflyer » Tue Sep 21, 2021 11:49 pm
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First post

Just bit the bullet on a holly system now just waiting for it to be deluvered
here are the parts needed for a stock 360 with a mild rv cam installed...

Last post

Thanks for taking the time to reply. Mine is a 71 with a buick 350 so mine might be a bit different but I’ll check to see if I can do your method....
54 Replies

4739 Views

Last post by Analog
Sun Mar 13, 2022 8:36 pm
Sniper 2Gc fuel line routing

Last post by Analog « Tue Feb 08, 2022 4:56 pm
Replies: 3
by Analog » Mon Feb 07, 2022 1:42 pm

First post

I'm installing a Holley sniper 2gc on my 71wagoneer. I'm also using the Holley in tank fuel pump with a return line. I'll use Earls vapor guard lines...

Last post

I saw that you ran your fuel lines across the drivers side valve cover. I was thinking going from the back of the block might be less heat, unless...

3 Replies

419 Views

Last post by Analog
Tue Feb 08, 2022 4:56 pm
Performance fuel injection system

Last post by Srdayflyer « Fri Jan 07, 2022 7:50 pm
Replies: 1
by Chatterbox » Sun Jan 02, 2022 8:26 am

First post

I'm wanting to go to efi on my 4.2. I really like the Performance Fuel injection system offers for the money. Has anyone used them? The other part of...

Last post

I looked into this system along with a few others using almost the same components, this is a cobbled together rehash of gm parts most vintage 1988-...

1 Replies

482 Views

Last post by Srdayflyer
Fri Jan 07, 2022 7:50 pm
Sniper Cold Tuning

Last post by Moosehead « Tue Dec 07, 2021 7:02 am
Replies: 8
by 1979bettywhite » Fri May 08, 2020 8:03 am

First post

First off, once up to temp, my system runs flawlessly.

On cold start, no real issues other than the initial first drop (2-3 seconds) after turning...

Last post

Chris from EFI System Pro had the best start up tune explanations in below attachment, which also break it down from both handheld adjustments and...

8 Replies

2272 Views

Last post by Moosehead
Tue Dec 07, 2021 7:02 am
Holley Sniper EFI on 401

Last post by Moosehead « Sun Dec 05, 2021 2:55 pm
Replies: 52
by KJ Ryu » Sat Jul 01, 2017 5:22 pm
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First post

Got the Sniper installed, today, sans coolant sensor. I can't get the damn plug out of the intake. Why the hell did Edelbrock use a plug with a 5/16...

Last post

Installed the adjustable EFI System pro progressive link this morning. Getting the OEM cotter pin out was a bit tricky so removed the Sniper TB to...
52 Replies

21716 Views

Last post by Moosehead
Sun Dec 05, 2021 2:55 pm
HELP! Holley Sniper/Hyperspark Ignition Connecting to Key

Last post by Srdayflyer « Thu Dec 02, 2021 3:52 pm
Replies: 7
by jfwolverine » Sun Oct 17, 2021 8:07 am

First post

Here's some backstory and then my question:
I have a 1983 Wagoneer with a 360. I installed a Holley Sniper EFI with no issue about a year ago....

Last post

pictures show pins installed on the throttle bracket,there is a provision in the bracket tor throttle return spring attachment, however the exsisting...

7 Replies

1152 Views

Last post by Srdayflyer
Thu Dec 02, 2021 3:52 pm
NJ or Tri state area hemi swap

Last post by Dave316 « Tue Nov 23, 2021 7:52 pm
Replies: 2
by Dave316 » Tue Nov 23, 2021 8:38 am

First post

So, I have a beautiful 1989 Grand Wagoneer with 90k miles. It has the Howell efi, but I want to put a new non supercharged hemi and the 8 speed...

Last post

Sorry, nj,ny, ct, but honestly for the right shop, pa, and del are fine. Thank you!!

2 Replies

514 Views

Last post by Dave316
Tue Nov 23, 2021 7:52 pm
401 Sniper EFI AF/R

Last post by Moosehead « Tue Nov 23, 2021 7:03 pm
Replies: 9
by FSBOB » Fri Nov 30, 2018 1:01 pm

First post

Hi all,
I've recently rebuilt my 401 and have been trying to get my fuel injection dialed in better. I've been running the stock settings that came...

Last post

Just upgraded EFI from a buggy FAST unit to the Holley Sniper on a 401. Very pleased with the Sniper thus far and its built-in fuel pressure...

9 Replies

4445 Views

Last post by Moosehead
Tue Nov 23, 2021 7:03 pm
Sniper 2bbl vs 4bbl

Last post by Stuka « Wed Oct 20, 2021 5:57 pm
Replies: 2
by Anvil-3 » Tue Mar 02, 2021 5:33 am

First post

So I am still early in my build, but as a young’n I don’t want to deal with carburetor stuff. I was pricing out an upgrade on my 89 GW from the 2bbl...

Last post

For the vast majority of AMC V8s the 2v is plenty.

2 Replies

1089 Views

Last post by Stuka
Wed Oct 20, 2021 5:57 pm
TBI, 727, and a kickdown cable bracket…

Last post by babywag « Tue Sep 28, 2021 3:11 pm
Replies: 3
by SkylinePCG » Mon Sep 20, 2021 6:28 am

First post

Has anyone swapped to TBI, and also used a lokar cable in lieu of the stock linkage rods?

My stock linkage doesn’t line up with the TBI unit, but I...

Last post

edelbrock sells a linkage adapter plate or you can make your own.
it moves throttle cable bracket forward

3 Replies

937 Views

Last post by babywag
Tue Sep 28, 2021 3:11 pm
Old Howell EFI problems need help!

Last post by babywag « Tue Sep 28, 2021 3:09 pm
Replies: 6
by scramble96 » Thu Jul 29, 2021 6:56 pm

First post

So about a year ago I bought a 1987 Grand Wagoneer. In about 1999, a previous owner had put in a fresh 401 and a Howell efi system. It looks like it...

Last post

sounds like typical failed coolant temp sensor
when they go bad engine thinks it's way cold and they're absolutely pig rich

easy to check with $10...

6 Replies

1274 Views

Last post by babywag
Tue Sep 28, 2021 3:09 pm
Planning for Edelbrock Pro Flo

Last post by JeepNorris « Tue Sep 14, 2021 1:27 pm
Replies: 30
by sirrus » Thu Nov 12, 2020 2:24 pm
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First post

I'm in the active research stage for putting EFI (Edelbrock Pro Flo 4) in my waggy and decided to create a thread to document my process and also to...

Last post

Update, my new distributor ate my cam gear for lunch after a few weeks of driving. Now having to replace both the new distributor gear and the old...
30 Replies

5763 Views

Last post by JeepNorris
Tue Sep 14, 2021 1:27 pm

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