02-24-2026, 08:25 PM

tooski

Chief Ponti-yacker

Join Date: Oct 2010

Location: Thunder Bay, Ontario

Posts: 717

WOT manifold vaccum

Probably discussed previously but I got tired searching.
What is an ideal manifold vacuum at WOT? I read some online blurb where a guy was using manifold vacuum to size a carb. That is a WOT vacuum of 3" would indicate the carb is too small and is creating too much restriction. Currently my vacuum goes to 0" when I go WOT. 825 Demon on a 461.
Frank

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Frank M.
75 Firebird
68 Firebird 400 RAIII
66 Chevy II 461 Pontiac in AZ

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