I own a 95 VS SS, auto, mild cam, chipped, and it seems to have developed a major issue. The problem is evident at low speeds, but most noticeable at 110k's. It will be sitting around 2100rpm, then suddenly the revs will jump up and down, anywhere between about 1000rpm and 3800rpm is not uncommon. Can feel and hear it, as well as watching the tacho. Have had car at different mechanics, no errors are being read but the guys don't want to start pulling it apart and then charging me for something that might not fix it. The other thing is, the problem can sometimes be intermittent - it will work perfect then out of nowhere it will play up. Any help would be greatly appreciated.