nice hot rod you have there
That was my next move on the plugs. Im gonna call Holley and ask them about running the 660's. I guess if I have to I'll get some new carbs.Drop the plug gap down to .025 or .030 with a clean plug and see if that helps too. It's very easy for a supercharged engine to build enough cylinder pressure that the plugs will not fire under load.
Could you elaborate a bit?on 660 center squiters the idle curcuit needes to be leaned out with a piece of .015" wire
Frank