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Mod | | | Forums66 Topics128,088 Posts1,056,413 Members48,443 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Feb 2000 Posts: 5,225 'Bolter | | 'Bolter Joined: Feb 2000 Posts: 5,225 | Run one stock advance spring and one of the medium weight springs from the kit. You want total timing all in by 2500 to 2700 rpm so at highway speeds you take advantage of it.
Total timing about 34 to 36 degrees depending on the gas quality and if it pings under moderate load.
Spark plugs gap at .060" with HEI, I like to set mine at .055", .060 just seems to wide.
Joe | | |
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