GOFASTER

What is the GPH flow numbers on a 1991 RS TBI stock fuel pump in tank? If I am pushing 515HP with a carb, would a holley red eltc fuel pump along with the stock TBI pump give me enough flow to run right?

Damon

I doubt the stock pump would keep up with that. Any time you ask about the flow of an electric pump you need to specify AT WHAT PRESSURE. It'll flow a lot more at 5 PSI than it will at 15 PSI, etc.

For a carb using an electric pump you want to use a higher pressure pump and regulate it down to a carb-friendly pressure up in the engine bay. Don't buy a 7 PSI pump and expect it to hold 7PSI way up and the front of the engine under hard acceleration/full throttle.

GOFASTER

I am totaly aware of that, my question what is the flow of "GPH" at 7psi? How is that? I am already adding on an extra ELTC Fuel pump (110 gph or more) plus the tbi pump in the tank, I was only asking to use it as a helper pump, so I wanted to know the flow, to add that to my new pump for a total of GPH flow, make snense? I hope so, I just hope that 110 gph holley blue pump will hold up to that HP? That is my real question.

thanks