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HP 500 carb. jetting

Old 01-24-2003 | 03:21 PM
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Default HP 500 carb. jetting

Can someone please explain the reason for the irregular jetting in the Holley 80466-800cfm carb?
Primary: Port-81, Star.75
Sec: Port-89, Star. 93
thx.
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Old 01-24-2003 | 03:56 PM
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Mine is staggered also. Been told mainly because of the dual plane intake.
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Old 01-24-2003 | 04:28 PM
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1.they are all staggered...2..it's a single plane intake...and the way they have it jetted works very well....to sum it up quick...drivablity.
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Old 01-24-2003 | 05:16 PM
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Oops, my bad. Overlooked the 'HP500' part.
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