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Old 03-01-2024, 11:28 AM
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Mike S Mike S is offline
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Join Date: Dec 1999
Location: Vineland,N.J.
Posts: 1,521
Default Carb for mild 400

I built a mild 400 for my street car last year. I am running a performer rpm intake. Right now I am running a 750 holley vacuum secondary. Performance is not a primary concern. I would like to get decent fuel milage out of it. I plan on taking some long road trips (+500 miles) with it.
I have a 76 quadrajet and a 600 holley laying around. Do you think I am giving up some milage with the 750? or change carbs?

I have to add the 2004r trans is great with the 3.73 gears.

 


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