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L69 venturi size?

Old January 19th, 2012, 12:56 PM
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L69 venturi size?

I recently purchased an original tri carb intake, and am starting to piece together the carbs/linkages/fuel lines. None of the spec sheets on the carbs list the venturi size for them, does anyone know what the correct size was in '66?
Thank you, Eric Gould
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Old January 19th, 2012, 01:25 PM
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Call Mike w/

He was very helpful when i restored & rebuilt the carbs for my buddies L69. He Has done quite a few 66 olds Tri-Carbs as well as the pontiac stuff & knows the guts of the carbs & can help you pick the right parts for your application.
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Old January 19th, 2012, 05:48 PM
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center carb (primary) 1-3/16"
end carbs (secondaries) 1-5/16"
On the four barrel scale (1.5" vacuum) they are 249 and 299 cfm or round off to 850 total.
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