Originally posted by Keyser: You need a new fuel pump I think. You aren't using a booster pump are you?
To be sure you could check fuel pressure at high rpms to see if it is falling. Returnless use a focus SVT pump, return use the trusty walbro 255(GSS 342). I put down 388 on my 2.5 duratec with fuel to spare. Suneil did 402 with the same set up and still had fuel left. Both cars had 42lb injectors.
Great, thanks for the suggestions. I'll check into that. Shouldn't be that hard to get to.
How loud is the Walbro? If I'm going to replace my pump, I'd ideally like to get something quiet.
