Stock mechanical fuel pump output? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

e rock · 05-07-2007, 02:29 PM

How much can I reasonably expect the stock mechanical fuel pump on a '71 350 to put out?

The new motor has considerably more power and will be running a ~700cfm Holley, but I'm told that I should have at least a 750cfm on it. The builder says redline is around 7500rpm, but I'm not racing it and realistically it'll just be serving daily driver duties. I have a Mallory 110 electric pump (and 140 filter) that I can put in, but I'd rather keep it simple if possible. I know there are high-output mechanical pumps as well - are they worth the $$$?

Thanks,
Eric

05-07-2007, 02:29 PM	#1
e rock Registered User Join Date: Nov 2006 Location: Monroe, WA Posts: 87	Stock mechanical fuel pump output? How much can I reasonably expect the stock mechanical fuel pump on a '71 350 to put out? The new motor has considerably more power and will be running a ~700cfm Holley, but I'm told that I should have at least a 750cfm on it. The builder says redline is around 7500rpm, but I'm not racing it and realistically it'll just be serving daily driver duties. I have a Mallory 110 electric pump (and 140 filter) that I can put in, but I'd rather keep it simple if possible. I know there are high-output mechanical pumps as well - are they worth the $$$? Thanks, Eric



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