No Start 92 4R 4x4 V6 AT (<95k)

My 92 V6 4x4 AT (<95k) 4Runner had a little hesitation going on so I dumped 4-5 oz of top oil (lucas) in the gas tank. Unfortunately I did this AFTER filling up with gas. Truck sat all night and I started it and drove 3 miles before the engine choked and stop running. I coasted to a stop, tried starting with starting fluid, no start. I had suspected that the oil dropped to the bottom of the tank and was picked up at the pump undiluted causing fouling of the plugs. I drained a 8oz of fuel, out of the filter, cold start line and injector fuel line. Fuel pressure is good. No Start.
Since then I have swapped out the coil, rotor, distributor. Battery checks fine, I checked for codes (none). The oil issue may have been a coincidence and not the actual problem. I think the issue is down to electrical which is my Achilles heal. Car cranks great, just refuses to fire.
Any suggestions on what and how to check further? Thanks

 

do you have spark?