I do mostly city stop and go with my 57 Tbird. I find the plugs get really sooty and start to misfire.

I have a 312 with a holley 4160 4 barrel. I am running pertonix ignitor and a flamethrower. I try to run it as lean as possible. I do have it advanced 10˚.

I am running autolite 46 Copper core gapped at standard 0.36. Would running an Autolite platinum help?

Also when adjusting the mixture screws-dose the right side mixture screw affect the right bank and left side left bank?





thanks