sabo21

exchanged my holley blue fuel pump at oreillys, the new pump is only 7psi on my pressure guage, the blue has always been 14psi, i think someone swapped it at parts store and put in red in box,,, other than sticker on bracket is there any way to tell the difference on the pump "markings" or something i can tell...

Clunk

I've read the bypass/pressure regulation spring is stiffer.

bd02dad

Pull the spring out and stretch it a little.