89 gmc s-15 (Chevy s-10 samething)

i got this s-15 cheap to fix up, the truck sat for two years. so far i have changed the oil & filter, feul pump & filter, gas tank & sending unit, all brake lines & hardware, plugs, distibuter cap, wires, rotor, map senor, oil psi switch,and altenator. truck started ran for a while this summer ( ran out of time to work on it ). now that i have more time to work on it, it wont start, getting feul, but has no spark,brand new battery. anyone have any ideas at all. thanks for the help.