Ok, got some time to dink with the car tonight. I got the pro m maf and installed it. It ran ok and then about 5 minutes later it started surging and then died. The car was tuned with a 70mm tb, and 76mm maf with 42lb injectors. I installed a 75mm accufab tb and an 80mm pro m maf sensor and housing. Didn't re tune it. I figure that it will need to be tuned to the new setup. I took it out to warm it up and pull codes and it ran terrible so I took it back inside. It was stalling out and not wanting to start back up. I finally put the old tb and maf back on and fired it up. It ran without stalling, but my fuel pressure was bouncing between 15 and 20 at idle. I unplugged the vacuum line on the regulator and it didn't bump up the pressure like it should. I didn't see any fuel coming from the vacuum port. I replaced the fuel filter a couple of days ago also. Could this be a fuel pump issue? I can hear it kick on when I turn on the key.