I replaced wires, plugs, rotor & cap. Still hesitates @ 25mph. I also notice a burnt smell. I reset the timing - now sometimes the car dies while idling except when I run the A/C. My car is 87 Z28 5.7TPI. Could this be fuel injectors, distributor, pistons, valves or timing chain. I did notice that the timing seems to change. I took it to Midas the guy just gave me all this bull about maybe someone ran the car in the drink. and it was to tough to diagnose the problem. That it could almost be anything from the computer, transmission, etc.
Thanks,
Randy