86 4.3 problems
#2
Not that familiar with the early TBI system but as in any engine you need to check 2 things: are you getting spark and are you getting fuel. Sounds like you fixed fuel issues but if you aren't getting fuel into the engine it could be as simple as a plugged filter or else a problem with the TBI. I would check spark first, get a HEI spark tester and check for spark at the plug. On my 1987 I had to replace ignition modules a few times as they go bad after a while and won't give any spark.