Misfiring problem

I'm new to the forum, but anyways I just got a 95 MM with the 2.4L. When it warms up it misfires, the wires were corroded I changed the wires, distributor cap, and plugs figuring that was the problem. No luck, still misfiring. I'm at a loss, any ideas?

Ok thanks for the reply, anyway to check them? I have a feeling it wont be cheap