Thread: Jetting
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Old 09-07-2004, 10:47 PM
Jack21 Jack21 is offline
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Are you using a PCV valve? Carb sometimes needs to be jetted richer to adjust for extra air from PCV.

Are you using a hydraulic roller cam? These things really pull vacuum, and carb may need leaning out because cam works so well.

I have similar setup. 351W, 650 Holley DP, hyd roller, Ede Perf RPM. Holleys come from the factory with worst case jetting. For a more optimum street motor, they need leaning out.

I jetted primaries down to 64 - 65.
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