engine swap barely runs

[wantafastsvx]

Hey everyone its been a few years since i've been on here and the suby has been sitting. But i just recently got a 91xxx mile engine and installed it into the car. The problem is it barely runs. And up until last night didnt run at all. I checked and re-did timing just to be sure it was ok. Changed all the plugs. Swapped out the cam, and both crank sensors, and the water temp sensor at the back of the engine on the drivers side. I get fuel and spark but it would not fire just crank. Went out and got some ether(starting fluid) sprayed into the intake and it almost immediately fired over. Since the starting fluid has been used it will fire and run really rough like its on 4cyls. Do you think the injectors are just completely clogged? I cant think of anything else because its had fuel and spark this entire time and it never fired once until the ether was used. If you all have any suggestions im all ears. I appreciate the help in advance.