Posted By: GVH
340 spark plugs - 05/06/21 11:14 AM
What are you people using for spark plugs in a 71 340 call for N-9-Y ?
Closest Napa list in a Champion is N-12-Y are they not too hot ,car is stock street car.
Closest Napa list in a Champion is N-12-Y are they not too hot ,car is stock street car.