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Mod | | | Forums66 Topics128,072 Posts1,055,906 Members48,429 | | 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!
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#42795 08/17/2002 3:32 AM | Joined: May 2002 Posts: 20 Member | | Member Joined: May 2002 Posts: 20 | Carburetor websites and Hollys own information says 4bbl carbs and 2 bbl carbs are CFM rated at different vacuum depressions. Looks like a 500 cfm 2bbl is only 350 cfm when rated the same way as a 4bbl.
Porky Pig is just a ham.
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