[6t8cat]

What would you recommend the correct plug gap be on a 351C 2v with performer intake and 4 bbl carb pertronix ignitor ignition and flame thrower coil....I was thinking .040 would make it ..Thanks in advance.....Lance

 

[Cougar Bill]

.045 is what I run on all my cats w/ this setup. I believe Vic Yarberry ( Cougars Unlimited) deserves the credit for this information. Good luck!

 

[droptopcat70]

i have a motor auto repair manual from 1976 and i go by a .035 gap w/ the plugs
thanks
pat

 

[jimk351c]

I run .040 with the exact same setup as you, with no problems. The next time that I pull the plugs, I may try .045, as Bill suggests.

 

[mikes67]

Spark plug gap

The pertronix site says to incress the gap .005 above stock gap.