Fuel Pump

[AZ3.8Camaro]

I am fairly sure my fuel pump is going out. Here is the deal.
It runs fine, but at high RPMS it makes horrible noise.
With the nitrous on, it the FPSS shuts down at high rpms.
I belive it to be the pump becuase of the noise, but I am not 100%.
Ok, the walbro 255 will work, any reason to just spend an extra couple and get the high pressure or is it just a total waste?
Why does the pump from checkers/autozone cost $255??? [img]graemlins/omg.gif[/img] !
Thanks..

[Infernal]

I would buy and install a fuel pressure gauge so you can see what kind of flow you're getting -- you want to have one with the NOS kit anyway so it'll be an investment.