I have an 89' 2.8 115mph camaro...I put in a used gauge cluster today from a car with a 2.8 and 115mph speedo...but the needle on the tach goes all the way up when i drive the car...it moves around but it goes way too high while i'm driving...said the car was idling at 35...Is it broken? Can i swap my old tach into the new cluster?