Buick Grand National fuel pump enough for an L92?

[samckitt]

To support around 500hp to the rear wheels, what pump is needed? The Walbro 255 enough to feed that? If so, is there a Walbro 255 that is a direct replacement for the GN sending unit?

 

[vickysbu]

The Wlabro 340 is a direct replacement, but like BoostedbuLQ9 stated, get the Racetronix kit with the upgraded power wire, that way @ wot your pumps voltage wont drop. http://www.racetronix.com/RX-G7-FPKG.html

 

[samckitt]

That Racetronix kit looks like a good idea. My battery is in the trunk, thinking it would be better to wire directly to the battery (through a relay), that way it is a shorter line than going from battery in trunk, to alternator & back to the tank.

 

[vickysbu]

If you look at the exploded view you will see that the harness has connections for the alt and sending unit. It doesnt connect directly to the battery. I would connect it as suggested...

 

[samckitt]

That post on the alternator goes directly to the positive side of the battery.