Installed a 16197427 on my '90 on Tuesday morning.
Those 1227747 fossils are just too damn slow for my taste.
Also stole the WB from my '88 so I can tune it quick.
Tuning by BLM numbers is okay, but using a WB makes it much quicker/easier.
Took ~45 minutes to re-pin the harness, and wire up the WB.
Would have been quicker if the 2yr old wasn't underfoot
I was hesitant to do it on my daily driver, but glad I did.
EDIT: Just for reference it's still a fuel only system right now.
No knock sensor either...