Holley 4160 600CFM - 472 Cadillac

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MD3
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Holley 4160 600CFM - 472 Cadillac

Post by MD3 » Wed Feb 12, 2020 7:29 pm

Have a Holley 4160 600CFM on my 472. My secondary is opening too soon. Can anyone recommend what spring "color" from Holley I should install to slow the opening of my secondary

Thanks

Doug

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Slidin Gator
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Re: Holley 4160 600CFM - 472 Cadillac

Post by Slidin Gator » Wed Feb 12, 2020 8:23 pm

is this a direct drive or gear?
I grew up thinking I-10 was the Mason Dixon line.
1986 Airboat Engineering Inc., 14' Marsh Master. Refreshed narrow deck, SV O-540, 72” NGQ. A Bob Stossel original.

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MD3
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Re: Holley 4160 600CFM - 472 Cadillac

Post by MD3 » Wed Feb 12, 2020 10:37 pm

Direct Drive

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