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Click on image for the lowdown. 
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| | | Forums66 Topics128,101 Posts1,056,181 Members48,436 | | 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: Sep 2009 Posts: 296 'Bolter | | 'Bolter Joined: Sep 2009 Posts: 296 | I think the factory setting is somewhere around 450-500. Mine is currently set on 500, and works pretty well. Any lower than that, the oil pressure starts to drop off and it starts to sputter.
-Patrick
1953 Chevrolet 3100
261 / 4-speed / 4:11 / Commercial Red
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