Oh yeah, not really proof, but interesting. While dyno tuning that truck, it collapsed a stock lifter, so they had to pull the heads and replace them.

 

just to get this strait, you are saying he got nearly 600rwhp on a stock fuel pump? what am i missing because that is not my experience at all.

 

On my old 5.3, heads, cam, and a 150 shot my fuel pump ran out of crap.

 

Are you sure he didnt have a seperate pump for the DP? That i could see being feasable.

 

So what style pump are we talking here? Is this an aftermarket in tank type. or an inline auxilary pump?
I've just about got my C3 with the whipple put back together with forged internals, and don't want to go lean again. Thx!

 

1 single walbro gss340m aux inline pump will take you a long ways, i dont have a hp but i got up to 9psi and a 100shot on a 6.0 with one. seems like that pump is good for 600+rwhp but dont quote me one that. best thing is that pump is cheap, like $120 bucks and prety easy to install too.

if you have a few months to wait you might be able to get a twin intank 340m setup from racetronics, it is a very nice set up, truely plug and play, not sure on the hp rating but i would guess 800+ on stock lines, maybe alot more than that. it cost $500 or so and you have to send him a moduel to be modified.

 

Combination says 420 to 450 is pushing the stock pump, on the f-bodys they can run up to 500hp, and 550 for the stock corvette pump according to Dave.