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Old 03-01-2024, 02:15 PM
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shaker455 shaker455 is offline
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Join Date: Feb 2002
Location: NH
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Originally Posted by Mike S View Post
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.
Mike,
Do up the 76' Qjet, smaller primaries will give you better gas mileage and it's 75' only that has 3rd metering rod deal so your good to go!
Jeff

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