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Mod | | | Forums66 Topics128,080 Posts1,055,944 Members48,430 | | 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: Nov 2000 Posts: 582 Shop Shark | | Shop Shark Joined: Nov 2000 Posts: 582 | I balanced my dual Holly Webers by using a Dwyer magnehelic gauge and some rubber tubing. Set up the gauge and then inserted the tubing (with a pitot tube attached) in the throat of each carb. Then just adjusted each carb to that the DP pressure readings were the same. Also need to make sure that the dual carb linkage is dead on and open each carb equally and at the same moment. | | |
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