You can check compression thru the injectors , the adaptor is much more expensive , the fuel you say you see at the injectors is it just dribbles and bubbles are you getting good pressure , did the solinoid you replaced come with and adaptor for the wiring harness , and did you get a service bulletin with it , it could be a wiring issue to the solinoid , also I would look at the fuel it's self by draining off the bottom of the filter , do you fill from a can , I have seen people put gasoline in the tank and some strange things happen , sometimes they run away , sometimes they won't run , what kind of temperature are you trying to start up in , see it's very cold in a lot of states right now , I think I'd hit it with a small shot of starting fluid and see if I could get it to pop , go very light on the fluid as that motor vapor locks easily
