What kind of fuel pressure readings should I be getting?

If its only "popping" when your turning it could be one of your cv joints are bad.

Now I'm having a problem with it stalling out when put into gear sometimes,
I checked the pressure and it was 55psi then i cleaned the pressure regulator out some then it was around 32-34psi.

I fixed the fuel leakage problem. I found two broken lines behind the fuel filter
I'm still having the revving problem though. I'll check the pressure tomorrow sometime.

Idk if this is related but after i park after driving for a few minutes there is a hissing sound coming from the fuel lines near the fuel filter. i've looked and felt around but could not find where its coming from. Is presser build up in the tank normal?

I have a 94 850 turbo, it will run fine up until about 4000-4500 rpm then just starts acting like its not getting fuel and wont rev any higher. It has no problem revving past 5000 in park or neutral, only when its in gear under boost. I've checked the timing 3 or 4 times and almost positive its in t...

Thanks, They seem to be the same on the outside so i wasn't sure how much difference there would actually be. I love having the instant boost, so I'm thinking I'll probably just stick with the 13g, not sure yet though.
Anyways thanks for the help.

Performance wise.

Thank you. How much different would a 15g from a 94 turbo model be?

That doesn't look like that would even work on on an 850 to be honest. I would just go with this one from ipd. http://www.ipdusa.com/products/7888/111 ... t-manifold Then you know it's guaranteed to fit and work with no problems.