Thanks everyone I took the advice. replaced wires, plugs and ,rotor,
rotor cap, left original coil and did a synthetic oil change. idle speed increased and better burning no black smoke out the pipe when you give it a shot on the gas. valve train as nosier, likely due to the synthetic oil.
Never got to work on a engine inside a vehicle before
One more question unrelated to the tune up. there is a plate in the exhaust pipe that is drilled like a restrictor "spark arrestor"? Would that make any difference in performance if I took it out or is it against the "rules" I remember seeing them in the old vehicles but have not seen them in years. Still looking at tweaking performance and muffler change next year.