Been getting a lot of flak about the type of gas to run in my old truck project. Also head about replacing some valve seats to allow for the running of unleaded gas, over adding in a lead additive. Does anyone know how to find out if an old engine like this is capable of running on unleaded? Do I need to replace the valve seats in order to do so? And how hard would that be to convert an engine to be able to run on unleaded gas?
-Niko