Plenum gaskets replaced, intake manifold gaskets replaced. throttle body cleaned.
Never drove truck much until now as he has just got a learners license. Got a new cap, rotor, and wires coming. Idles nice, runs like crap under load. We rebuilt the 45rh as it was pooched when we bought it. #8 plug very fouled...I wonder if it has a bad valve...may need to do a compressor test. Has no error codes in computer.