Hey all yo camaro guys. I purchased a 1991 Z28 this spring and am having a blast with it. I just got it licensed this week, I had been putting it off until I did a few things to it to make it a little safer to drive. It's a decent car fully loaded except for t-tops. I am told that I am only the third owner. Anyway I have a tach that reads about 800 RPMS high. where should I start looking to fix the problem? I'm thinking printed circuit in the dash but I'm not 100% sure, can anyone help?