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Old 06-20-2006, 08:07 AM
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i agree with double.. isnt it a vac secondary ?

*edit* on a holley
vac sec wont open just revving the engine in neutral. there has to be a load. the secondary idle enrichment comes from the amount of transfer slot showing in the secondaries.

on a stockish engine i use boxes. the slot is as long as is wide... or .020 whatever it sez.

on a mild or hot build i like a box and a half.

Last edited by spinn; 06-20-2006 at 09:12 AM. Reason: holley example explaination
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