solinoid just has power and grd. I don't know how you system is wired but there should be some safty switches in there somewhere. If you want to test a solid just run 12v to it. you will hear it click. most likely you are missing something.
usually you would have a switch off of a relay to arm it. then you should have a micro switch up on the throttle. you should also have a fuel presure safty switch. I like to use rpm window switch as well. I don't have a setup on my mustang but most kits ave the same kind of wiring/safty precautions.
if you are trying to get you solinoid to activate with no fuel pressure or the throttle pinned it is not going to with you system wired correctly.
get out your test light and check for power up the system.