Slant 6 wont idle after warm

Thanks everyone for all the replies and help. I changed the fuel pump and the fuel filter. There was no change in poor performance. Cap, rotor and points were in very worn condition. Replaced the cap and rotor and switched the car over to electronic ignition while I was at it. Car instantly started and idled very well. I was probably running on 3 or 4 cylinders in the past. It was if I put a turbo on it, it had a ton of power. Cold and hot start was instant. Started the car the next morning after sitting over night and it started right up.

Thanks again, Darryl