Post a picture of the spark plugs on here How many miles where on them when you looked at them? What heat range plugs and how much total timing are you running in the motor? Are you using the vacume advance? Last thing, do you know the true compression ratio? I like seeing my plugs clean, I do run a cold plug as lean as I can at part throttle cruise without pinging or detonation
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
How many miles where on them when you looked at them? What heat range plugs and how much total timing are you running in the motor? Are you using the vacume advance? Last thing, do you know the true compression ratio? I like seeing my plugs clean, I do run a cold plug as lean as I can at part throttle cruise without pinging or detonation 
