How bout the TFI module on the side of the distributor. Had a buddy that had a hot start/running issue. Truck was fine when it was cold but when it warmed up it had similar issues. Replaced it with one we had layin around and it ran fine. Just a shot in the dark
I was thinking about going to the salvage yard and pulling a distributor to swap out. I have noticed that the engine being hot makes a difference with mine. I have to retard the timing to get it to start if the motor is hot and it dies. But when it gets cold from sitting for a few hours I have to speed the timing up a little to get it to run smooth.