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Old 02-07-2023, 10:12 PM
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chiphead chiphead is offline
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Join Date: Nov 2004
Location: Aiken, SC
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Default Quickfuel 750 DP jetting?

I've got an out of the box QF 750 mech sec dual feed double pumper on a RPM on top of a 400 with 62 heads and summit 2802 cam. Choke, float level and fuel pressure are in the ballpark. Accel pump squirters and linkage seems to be working correctly. New R45S plugs turn black almost instantly. Black, fluffy carbon, not oil.

This carb has stock jetting of 73 primary jets and 82 secondary jets. Do I need to jet it down or look somewhere else for cause of fouling plugs?

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