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#1
05-21-2021, 06:34 PM
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Holley 800 Spreadbore Carb?
Anyone have any experience with an 800 CFM Holley Double pumper in the spreadbore configuration? Holley still makes the 650 version. Just wondering if the 800 w. mechanical secondaries might work on better on my 455 with a dual pattern intake that has a spreadbore shaped plenum flange. Ran across a nicely rebuilt unit and kind of like the small primary/big secondary layout that might give better fuel distribution with my intake.
I currently run a 750 QuickFuel w. vacuum secondaries with the intake block of plate and have an off idle I can't tune out. Tried additional idle air and also moved the pump cam to the top hole but still stumble on slow throttle tip-in off-idle.
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Triple Black 1971 GTO Last edited by NeighborsComplaint; 05-21-2021 at 06:51 PM. |
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