[Formulajones]

Originally Posted by RocktimusPryme

Lots of horror stories about the factory c5 type regulators getting overpowered by more powerful fuel pumps. I have a 400 lph pump.

That's why I mentioned they have only worked okay for me with stock or very mild setups, most likely because the pumps in those applications weren't all that big. I also run a 400 lph in my own, and I just swapped in a 450 lph in dad's car.

It's not overly difficult these days to make 500hp or more with most any brand engine with just bolt on parts. In which case I would not recommend the corvette style filter/regulator. It would be time to step up to a good size feed and return, with a good regulator, preferably close to the engine, and a big enough pump capable of supplying the HP being made.