do i need a new fuel pump?

[pdstang2000]

hey all,
so my car gives out under WOT at bout 4000rpm. i hooked up my predator and checked the FRP as i drove, and when it cuts out my FRP goes from 40psi to bout 7 psi.... is it my injectors, tune, or pump? could this be the cause of my random misfire code that keeps popping up?

when motor built 24 lb injectors were put in... motor is a 4.6 stroked to a 302 at 9.2:1 compression, stage 2 cams and heads, trickflow intake, headers, cai, bolt ons... making bout 315rwhp and 316rwtq...

 

[mogs01gt]

I would recommend a new pump. The Focus pump should help out but I dont see why its dropping down to 7psi, that leads me to believe there are other issues going on.

 

[Stark77]

with Stage 2 cams and stage 2 heads you're running a stock fuel pump and only 24lb injectors?

 

[Stan Weiss]

24lb injectors should be good for 365 HP at 95% duty cycle and .5 BSFC