stock fuel pump question???

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Aug 11, 2012 | 09:12 AM

STL 71 C3

Thread Starter

Instructor

Joined: Nov 2011

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stock fuel pump question???

Will stock fuel pump with return line support 450 hp 408ci engine with 750 holley dp? Would you upgrade to something else or try it?
Not drag car just street toy.

Aug 11, 2012 | 10:45 AM

BKbroiler

Le Mans Master

Joined: May 2002

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From: Lebanon Township New Jersey

Supposedly a stock pump will handle 500 hp. I'm not close to 500 or even 450, but a stock pump, with return, works fine on my 383. I've run 12.40 at 107 with it.

Aug 11, 2012 | 11:32 AM

STL 71 C3

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Instructor

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Quote:

Originally Posted by BKbroiler

Supposedly a stock pump will handle 500 hp. I'm not close to 500 or even 450, but a stock pump, with return, works fine on my 383. I've run 12.40 at 107 with it.

thanks!

With that time I bet your close if not at 450hp...
I guess I will try it and maybe mount a fuel pressure gage to check it during WOT.
What about radiator? Any concerns there?

Aug 11, 2012 | 01:13 PM

texas jim

Racer

Joined: Oct 2003

Posts: 424

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From: Killeen Texas

Depends what the carb you have calls for. You can check the fuel pressure w/ a gauge against what your carb info says it needs.