You need 3 things for an engine to run. Air, fuel and spark. Check to see you have bot only fuel pressure about also enough fuel flow. Check to see you have spark. What I'd do first is spray brake clean down the throttle body and see if it starts. If it does you have a fuel problem!
1994 Mustang GT
Bought for $2200,Had 97K miles,New fuel tank,New driver front hub,New pass ball joint,New alt, New battery,New fog lights,New plastic bezel shifter,Fixed check engine light,New tires,Coolant flush,Magnaflow exhaust. Its starting to come together towards stock THEN I will make it go FAST!