spark plug gap HEI 10.5 CR
Thread Starter
Pro
Joined: Jul 2010
Posts: 532
Likes: 1
From: new york city ny
spark plug gap HEI 10.5 CR
355 with vortec iron heads and 276h cam. Compession ratio 10.5 with Mallory HEI.
What should be the gap for best performance on my 1981 vette (daily driver)..
s.
What should be the gap for best performance on my 1981 vette (daily driver)..
s.
Burning Brakes
Joined: Mar 2005
Posts: 861
Likes: 0
From: WNY
I have a similar setup - 383, aftermarket heads, 10.2 compression ratio, mallory HEI.
Mine really likes it around a .045 I wouldnt go any smaller than that. Some people reccomend even going farther, but that seems to be a sweet spot for my setup.
Mine really likes it around a .045 I wouldnt go any smaller than that. Some people reccomend even going farther, but that seems to be a sweet spot for my setup.
