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Click on image for the lowdown. 
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| | | Forums66 Topics128,035 Posts1,055,570 Members48,426 | | 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!
| | THANKS!
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: Mar 2010 Posts: 92 'Bolter | | 'Bolter Joined: Mar 2010 Posts: 92 | tclederman:
I'm a little fuzzy on the whole "maximum-vacuum technique" for timing. would you mind explaining that?
thanks.
1949 Chevy 4400 216
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