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Replacing Holley 715cfm

Joet5point9

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Hey guys.

I’m gonna be replacing the original Holley 715cfm carb on our jet cruiser. It’s paired to a Hardin Marine 400HP 454. It looks like Holley doesn’t make the 715 anymore. So my choices are to go with a 650 or 750. My initial thought was the 750. Anybody think the 650 may be more suitable?

-J
 

Runs2rch

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Either would work, but quick math 454ci, 5500 rpm cfm would come in around 625 with a .85 ve.

So 650 would get it done.
 
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