sentra xe "will not start"

i have a 1986 sentra, that i race on the oval. it was very fast. "in fact it kicked ass" after racing i parked it and that was it. it will not start. i cant seem to get any spark, i changed dist, coil, checked ground, nothing worked. it has power going to coil but no spark, and yes the timing belt is OK. do i have computer problems? and if so can i bypass computer? any idea,s? #65 hardleft