Fuel pump?

First iv got to get it running well enough to where i can crank it and get out to use the timing light. Lol i tried what roccodart440 suggested and cranked the idle screw all the way down... still had to give it more throttle to keep it running. Honestly at this point i think ima take a risk and just order a new timing chain and put it on. If i get the cover off and it turns out tjats not the problem witch i think is highly unlikely, then at least ill have a new timing chain and ill know thats not the problem. But iv got my fingures crossed hoping thats it!