Thread: What is the BEST all around Carb for street and strip
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Old 04-18-2009, 12:44 PM
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Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
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If the balance of the engine was built for track usage such as intake, heads, cam etc you may find a vacuum secondary carb to be a huge compromise. One of the main reasons the HP and DP use more fuel comparatively speaking is because the idle circuits are dictated by the metering plates and their idle feed restictors which are intended to be much richer. Changing the main circuit jetting only limits the MAXIMUM fuel that will be allowed to flow. Do some research and check out the carb that was on the 425 HP 427 Chevrolet from the late 60's. The Metering plates control the show. You could contact a noted carb tuner such as Brasswell or Sean Murphy Induction and have the existing IFR's reduced in size and keep the same carb.
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Last edited by Rick Parker; 04-18-2009 at 12:48 PM..
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