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Old 04-23-2024, 12:47 AM   #13
PetesPonies
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Join Date: Jul 2011
Location: South Carolina
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Default Re: 4100 Carb for 1957 312

Quote:
Originally Posted by Dude81 View Post
Thanks. Pretty sure it's a 1.12 as the butterfly openings measure 1.55". I read somewhere that butterflys were 1.44 on the 1.08s, and 1.56 on the 1.12s. Couldn't find the stamping.
Its not marked on the throttle plates. The venturi size is cast into the side of teh carburetor body.
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