View Single Post
Old 08-05-2015, 11:28 AM   #45
TJ's Chevy
Post Whore
 
TJ's Chevy's Avatar
 
Join Date: Mar 2013
Location: Southern Oregon
Posts: 10,399
Re: Question for the guys running 3.73's with a 6cyl and manual trans

Quote:
Originally Posted by curvedglass View Post
Update:
things have been better. I have been able to get some power out of my third gear now and my last tank of fuel was over 18mpg.

New question ... re-gapping spark plugs.

When I added the carb and HEI I never changed the plug gap. Actually never thought of it. Friend told me I can't take full advantage of the HEI without re-gapping the plugs.

What should the gap be for HEI?
.045-.055 pending on how hot the HEI is. For a stock GM HEI I would do .045.
__________________
1966 Chevy C10 "Project Two Tone" http://67-72chevytrucks.com/vboard/s...d.php?t=596643
1964 GMC "Crustine" semi-build:http://67-72chevytrucks.com/vboard/s...d.php?t=665056
My youtube channel. Username "Military Chevy": https://www.youtube.com/channel/UC_h...fzpcUXyK_5-uiw
TJ's Chevy is offline   Reply With Quote