Fuel pump / line limit

[Murt TTA]

I am looking to see the best set up for a twin turbo 6.0L LS fuel pump / line setup.

I am running my setup on 6 psi and it made 480 wheel hp, and it was running out of fuel in 3rd gear. I currently have a hotwired single reds xp fuel pump and stock lines.

What would be the best setup for 650-700 hp?

I was looking at the racetronix double pumper, also any recommendations on running new braided lines? I know reds had a double pumper but it looks like they are build to order, looking to get something ready to ship.

 

[87GN_70GS]

Here is one option, but it's external. You can leave the XP in-tank and feed this external one in-series. At 64 psi (58 base plus 6 psi boost) fuel flow is around 315 lph (@13.5v) or 82 gph. That should be enough for about 800 hp.

http://www.racetronix.biz/itemdesc.asp?ic=WSP330&eq=&Tp=

 

[Racetronix]

Here is one option, but it's external. You can leave the XP in-tank and feed this external one in-series. At 64 psi (58 base plus 6 psi boost) fuel flow is around 315 lph (@13.5v) or 82 gph. That should be enough for about 800 hp.
http://www.racetronix.biz/itemdesc.asp?ic=WSP330&eq=&Tp=

Feeding the WSP330 with a Walbro 255 would not be a good idea. The WSP330 would perform better on its own.