I broke the crank on my original engine and replaced it with a reman. Prior to the breakdown, all things worked at optimal condition. Now that we have the new engine in, I'm showing 260-305 psi in the fuel system. Turns well and strong but won't start. Not enough pressure. I've primed the system and there is fuel coming out of all injectors. Is there something I could me missing that may fix the problem? Please help.