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Click on image for the lowdown. 
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| | | Forums66 Topics128,095 Posts1,056,468 Members48,444 | | 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
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| | | | Joined: Apr 2005 Posts: 1,107 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 1,107 | .18 is a good start for the points, 35 on the plugs. 0.12 on the intake and 0.20 on the exhaust. if you have a vacuum gage set timing to highest vac. you can get. if not time to the ball and go from there. buy a maintenance manual everything you need to know is in there. or check out www.oldgmctrucks.com | | |
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