what fuel pressure?

[elongoria]

306, ported gt-40 heads, 1.6rr, typhoon intake, 65mm tb, 24lb injectors, trick flow stage 1 cam, shorties, 255lph fuel pump, 373's. What is a good fuel pressure to run?

[Sleeper]

35ish. Just depends. Id just get a tune.

[Blackpony]

40 lbs with vacuum removed from the regulator

[elongoria]

Ok, teachable moment. What does it do when you set pressure with vac off?

[Sleeper]

My suggestion was with the vaccume line hooked up.

[Blackpony]

My suggestion was with the vaccume line hooked up.

That can vary based on cam size and the amount of vacuum it makes

[Blackpony]

Ok, teachable moment. What does it do when you set pressure with vac off?

Unhook the vacuum line from the regulator and adjust accordingly. Lock it down, verify the pressure then reattach the vacuum.

[ktm300hater]

You set it with vacuum off because when you hook it back up the fuel pressure will drop a bit.