electric fuel pumps

so the red should be able to handle a 575hp 383?

I don't think it will. I called Holley when I was going to buy one for mine and if I remember right they said the red one was only good to 375hp. The blue one is only good to 550 hp according to them.

Like the other guys said they are LOUD and Obnoxious. I hate mine. I have it isolated just like Goody said he did his and it still sounds like a freakin chainsaw. I'm planning on switching to a high volume Carter mechanical as soon as I get the cash.