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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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| | | Joined: Oct 2001 Posts: 3,458 Extreme Gabster | | Extreme Gabster Joined: Oct 2001 Posts: 3,458 | Ok, I have in transit to me an Edmunds 2x2 intake and a set of Holley 2100/94 carbs (Like strombergs). I am ordering a set of adjustable main jets but I am also looking for suggestions as to what power valve closing vacuum I should use. I think original was 6.5 or 7 in single carb apps but Holley power valves are available down to 3. Any suggestions where to start? I am thinking 4.5 because that is half of seven and I am using 2 carbs. This is for a 235 with solid lifters and stock truck cam (I think). I am going to add a hotter cam later. The carbs are operated with each carb feeding 3 cylinders. The intake is water heated.
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A lone amateur built the Ark. A large group of professionals built the Titanic. | | |
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