l83 gen v in a 68 c10

[aboesec10]

hey all, I've installed a 2014 l83 from a silverado in my 68 c10. Were at the point of start up yet are having fuel pump issues. Im using the factory pump,module and pressure sensor. all wires have been verified, checked and reverified, the module was installed on another truck and is working fine, the pump was powered directly and is good. The vats2 have been disabled as well, we've got keyed power to the correct pins as well as constant, good grounds etc. Im stumped and am hoping somebody can help...