92 F350 4x4 ZF5 speed will not start unless I give it a blast of ether, or carb cleaner. Engine was a junkyard unit, no clue on actual mileage. The computer shows no codes. Fuel pressure is at 30PSI. Fuel pumps recently replaced with good used units. New fuel filter. I Seafoamed the fuel system. The motor will start on its own if you spend about 20 minutes worth of cranking to get it to start to sputter once, sputter twice, eventually starting or killing the battery. Once it gets started, and running for a minute or so, it will re-start with no problem. This truck does spend alot of time sitting.

Second problem, when you give the truck gas, it stumbles hella bad. It will let up once you get to the speed you wan't. This truck is not driven on the road, but eventually I will take the engine out to use in another rig, would like to have the problem figured out before then.