-7 or-8 on the last( ) number depending on the fuel and the tune up I like the extended tips plugs also I can go look at the numbers on the plugs if you need them
Last edited by Cab_Burge; 03/06/1107:13 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
) number depending on the fuel and the tune up 
I like the extended tips plugs also 
I can go look at the numbers on the plugs if you need them 
