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Click on image for the lowdown. 
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| | | Forums66 Topics128,030 Posts1,055,418 Members48,422 | | 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: Aug 2007 Posts: 156 Shop Shark | | Shop Shark Joined: Aug 2007 Posts: 156 | Right now I have my timing set to the flywheel mark with the octane selector at zero and the vacuum advance port plugged. To advance the timing would I use the octane selector? | | |
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