Alright, have a 95 GMC Jimmy with the 4.3. New timing chain, injector, plugs and wires along with new ignition distributor. CEL was on so I had the codes ran. Cylinder 3 misfire came up. Put another new plug in it and its still there. It doesnt really sound like it has a misfire unless accelerating. Whats going on? I have a little bit more oil in it, could this cause it???