Good Morning guys, have a 1984 k10 6.2 with banks system on it. The motor is from a cucv in great condition. put the motor in bled the system ran great for about 2 weeks. Then the other morning I started it and it was warming up when it died. Now it will not restart for the life of me. 2 brand new batteries along with starter, Glow plugs are working, have 12v to pink wire, only thing I noticed is that i have a small fuel leak coming from what appears to be the lift pump, and have some minor bubbles on the IP return (clear Tubing). Would a small leak really allow the motor to not start? Getting frustrated with it but any help would be awesome thank you guys.