Oliver Super 99

[red guy]

How do you raise fuel pressure on a Oliver Super 99? And how much is to much?

 

[Lee Wegner]

There is a small orfice in the return line fitting going back to the tank you would have too reduce the size of the orfice. I think they are supposed be around 60lbs, I am going too check mine as I put a different pump on last year because the other one was leaking. I have heard some running over a 100, but you can only put so much through the injectors.

 

[red guy]

Had a guy tell me they heard someone was running over 200lbs, seems like a lot. I wanted to try around 100, but didn't know what the system could handle. Isn't there a built in relief valve that you would have to modify to raise the pressure?