I have a gslse 6 port motor. Just got it rebuild and street ported. I dont have FI no more. I put a holley 600 and a holley fuel pump 7 psi. I am starting to run out of fuel at high rpm. My question is do I have to do a whole new fuel lines set up or can I use my stock fuel lines and get a bigger fuel pump.
thanks

 

First thing to check would be your fuel filter. If that does not correct the issue, then I would start looking to the fuel pump, or maybe float levels. Good luck...and welcome to the forum....

 

I second that... same thing happened to me with stock setup... and a new fuel filter fixed it.

 

what kind of fuel pump did you have?

 

don't forget about the sock on the pickup in the tank