Like I said in the title, it's an LT1 swapped into a thirdgen, and we're going to upgrade to a 22-gal fuel cell (stock 13 gal tank only lasts about 75 minutes). So we need to get a inline pump that will feed this thirsty beast. It's mostly stock right now, other than all the ac/smog stuff removed, headers and intake. We may look into mild port/polish later on, so an inline pump that more than does the job would be better. What's a good candidate. I'm not sure the gph I'm looking for here. Thanks!

 

If you're overpowering a walbro 255 with an LT1, it must be with ALOT of boost. Id go with an aeromotive 340 intake pump. Two if you're over 700hp

Bosche 044's are good inline pumps, remember the extra current draw they pull and set your relays accordingly

Inline pumps never have been real high on my list

What on earth have you done to the LT1 so it gets that awful of mileage?

 

The inline pump is to replace the in-tank pump, as the fuel cell we're getting can't accommodate the stock LT1 pump. We're probably only barely over stock HP, just this is endurance road-track racing, so we get about 6.5mpg.