recommended plug

[331stroker]

for a blown 331 with 185 AFR heads.. Im about to pickup the autolites 3923.. Is that what you guys running ?

[nstycpe93]

i run the 3923 and the 3922 for one range colder. also if you dont want to set the gap you can use the autolite racing plug. i think the number is AR3932 not sur eon number. i have heard some guys using the a certain ngk plug also.

[RSNovi]

I still gap the autolite racing plugs.