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I'm new to the forum and to vintage mopars, ummmm.... since I could buy leaded gas.
Anyway, looking for advice. I've just acquired a '67 Belvedere II with the 318 engine, and don't know if I should use lead additive, stay with premium w/o methanol (which I have access to and have been using), or WHAT?
The car is immaculate, as well as the motor. It's definitely has been removed at one time to do who knows what to it, and it has 41K original miles. The car came with quite a few trophies, about every bit of paperwork imaginable, but NOTHING about the engine, so I'm in the dark. It was an estate sale with no surviving relatives. All I really know is what I can see. The intake manifold has been switched to aluminum and has a new Edelbrock 4bbl carb on it. All else looks to be OEM or stock.
So, knowing what I don't know,
What fuel should I be using? I do us STABIL, and that's it. Plus I don't think STP is the racer's edge.
I would use a regular unleaded fuel with no alcohol just because it stores longer better. Two weeks is all you can hope for with E10 before it starts gathering water.
Lead additive probably would not hurt but I'm not sure if its necessary.
If you could find leaded gas at a reasonable price, sure. Lead acts as a lubricant and that's a good thing.
Otherwise, since it's a relatively low compression engine (assuming it's stock inside), regular unleaded pump gas is fine and throw out the STABIL or any other additives.
Modern gas is fine the way it is, as it has stabilizes in it already.
