Quote:

Depending on your camshaft you may need to take some of the spread out of your mechanical advance(welding up part of the slot and then fileing the slot so its a little smaller than before)I think I took 1/16" out of mine and it runs and idles like a champ. then you can get your timing where you need it and your car will idle properly without having the throttle blades open so far, and it should help with the dieseling.





Of course when you give it more intial timing, the total needs to be limited. I wasn't gonna get into all that in my post. But not limiting the timing is not gonna affect idle, it will when you rev it up, but not at idle.

IMO if your engine is dieseling when you turn it off, then there is a strong possibility that there is plenty of room for improvment with the cars tuneup.