View Single Post
  #1  
Old 07-31-2025, 09:21 AM
gtobird's Avatar
gtobird gtobird is offline
Chief Ponti-yacker
 
Join Date: Oct 2006
Location: Green Bay, Wisconsin
Posts: 645
Default Mechanical fuel pump pressure test

I'd like to pressure test a new mechanical fuel pump as I keep reading stories about how they are often over or under the PSI specs. This is a standard Carter fuel pump for a vanilla 68 350 carbureted engine with the single input fuel line.

Any suggestions of how to test it off or on the car? I don't want to permanently change the fuel line between the pump and carb by adding a pressure gauge. I've heard of people doing a quick test by connecting the output line of the pump directly to a pressure gauge and just cranking over the engine. Does that provide enough rpm to give a good reading? Open for thoughts or other methods.

Thanks
OJ

__________________
68 Firebird Convertible

68 GTO Clone (Tempest) Wagon