Badbear 45/70
Member
I am running a 1967 100 hp engine with the 1966 dist and coil and need to know what is the best plugs to run. I have fiberglass reeds in the motor and 0.020 cut off the heads and will be adding a bubble back exhaust this winter with a porting job and yes, I have everything I need to do this improvement. I am presently running Champion L82C plugs and they seem to work OK but with the next upgrade I wonder if there is a better plug to run.