I just bought a 95 z28 and its missing while cruising. Its runs great at an idle or when into the power but just driving it misses pretty good. Anyone have this happen to theirs. Any help would be great. Thanks.

 

Unless you know the history of the engine. The first prudent thing to do is a complete ignition tune up. Including wires, plugs, cap, rotor and coil.

Then let us know what it's doing.

Incidentally be careful doing the plugs. Many strip them. Use a little antisieze as well.