Inline filters are good for ppl running the pumps outside of the tank meaning some 1 with a sumpted tank... The internal filters work fine

 

515whp dynojet here on e85 with stock lines running an in tank walbro 400. I could probably push a bit more, but fuel pressure drops about 10psi by redline.

 

Just dont.want.to have to clean the in tank alot

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I was maxing out 2000cc injectors at 45 psi base pressure with dual 255's on -8AN feed -6AN drain at 816hp using E85. Since you have 340s but will be on stock lines I would say somewhere around 750-800 as well like g352s2k said.

 

Im running.l twin340s -10 feed and -6 return and.2000cc injectors what power mine good.for at 55psi

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Joey I would go ahead and just run your own lines man. Why skimp out on something so little and so cheap. I went on Jegs and ordered all the line and fittings for maybe $150.

 

You call that cheap? Stock lines are free y0

 

I would think somewhere around 950-1000 hp but that's uncharted territory for me.

 

55 psi? dam I'd say that would be 1100 hp territory

 

I think he meant 55psi base fuel pressure.