Project Intro: 68 Camaro "Cha Ching"

[Gmachine1911]

So I got the trunk corners cut out and raised so I can get my tail pipes made. That's a huge relief...got the car back together and tried to start it only to find my Optima battery was dead as a door nail. Not surprising as that thing was ancient. Bought a new one and got it installed and the engine cranks over like crazy but will NOT hit a lick. I can hear the fuel pump prime when I key on but no pressure at the rail..I double checked the supply/return lines were hooked up correctly but no fuel came out of either one. I'll probably drop the tank and verify the wires are hooked up correctly but I'm pretty anal about labeling everything so I have my doubts..Totally nuts, this thing was running when I dropped the tank to do the trunk
Haven't had a chance to troubleshoot much else. It's got a 1/4 tank of fuel. Not sure what the odds are that the new Corvete regulator could've suddenly died.