What is the HP limit of the factory fuel pumps? I made 514 on the dyno, and it was showing 60 pounds without it leaning out any on the top.

I have 50# injectors if that makes a difference, and plan to run about 18~19 pounds of KB boost.

 

I read in muscle mustang and fast fords a little upwards of 500.October 2002 issue(35 hot lightning tips)

 

you're kidding right?

 

I made 501/615 the last time I dyno'd, 100% STOCK FUEL SYSTEM, and my AF was 10.4 at the LEANEST part of WOT



No fuel problems here "YET"

When I go built motor this winter, I will be running
@ 100 HP more, and will have to see what the Dyno shows then ???

 

See; Like Robs you gotta wonder. His were doing just fine, but I think I will swap mine just for the added insurance.

Rob; does your nitrous kit tie into the fuel pump wiring any?

 

Nope; I plan to try and get my stock block into the 10's. It'll either make it, or split trying

 

You scared me!

As long as you know you're near the edge!

But I would get bigger pumps, just to eliminate that chance of that making you lean