Spark Plugs?

80cjinnc

What type of plugs do you guys run? I am running a 401, MSD 6A, 10 to 1 comp., mild port on the heads, ect. I am running NGK GR4 right now, what do you think?

fuzz401

autolite AR 3932 plugs gap them around .045 what I use in my 401

ol' school power

NGK with the smaller 5/8 hex

80cjinnc

Thanks guys...

BREK

80cjinnc wrote
What type of plugs do you guys run? I am running a 401, MSD 6A, 10 to 1 comp., mild port on the heads, ect. I am running NGK GR4 right now, what do you think?

X2 on the ngk's I have been using them (with good results) for the past 6 years.