I run the coldest plug that don't foul.
like Cab said you can run a hoter plug and mask the problum but it might go into detonation.


Bud www.wildcar-go.itgo.com
64 DODGE
60' 1.433,
1/8 6.38 at 107.4,
1/4 10.08 at 132.02
foot brake, leaf springs