93 Silvia running lean, I need some other opinions

[cheap_sticker05]

getting a new manifold today!

[DeatschWerks]

Okay, new development. I bought a new fuel pressure gauge to test it out again sine really this has to be something easy. When the pump prines I get 45psi, but right when it shuts off it drops back to zero pretty quick. Doesn't that mean the fpr is bad?
Finally a break through! Even though last time I checked this, it held steady at 45 for a long time.

Wow, I could have sworn I had posted a response to this.

The system should maintain pressure for a while. If it is dropping instantly, your FPR could be on it's way out...if it hasn't left already. Wouldn't be a bad idea to add that to the list and see what a new(ish) one would do for you.

[cheap_sticker05]

Well, that actually turned out to be me making a mistake. I crimped one of the o-rings when I popped them in the rail. Probably because I was using stock 370's with the old stretched o-rings. Car runs awesome though. Forgot how good response was with stock intake and sidemount! With the 550's back in, and a retuned ecu I get steady numbers in boost, according to my datalog, at 5psi I am at 13.1:1, and at 9psi I am around 12.3-11.9:1 and the car feels really strong.