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Click on image for the lowdown. 
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| | | Forums66 Topics128,154 Posts1,056,856 Members48,456 | | 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 2001 Posts: 29,270 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,270 | My 235 engines start to decrease in fuel economy after about 2400 RPM (cruising on a relatively flat road - Interstate).
I can easily cruise at 2600 RPM, but gas mileage suffers. | | |
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