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Mod | | | Forums66 Topics128,135 Posts1,056,423 Members48,441 | | 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: Oct 2006 Posts: 9,671 'Bolter | | 'Bolter Joined: Oct 2006 Posts: 9,671 | The engine was designed to give it's best performance with the timeing set to the ball, unless you have modified the engine or know more than the engineers the designed the chevy inline six.
Adjust your idle mixture in and out till you hit the "sweet spot", the setting listed in the service and repair manuals is only a starting point.
That engine with a fresh valve job and tume-up should idle down to 450-550 rpm and be as smooth as silk.
DG
Denny G
Sandwich, IL
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