I am in the process of looking to buy a ZR1 in a year or so and have of course been searching for the ZR1 I would want to own . 1990 would be my first choice . I have noticed that some of the gage cluster in some 1990 ZR1's are different . Some 1990's have the oil pressure max at 80 and others say 550 . Does anyone know why they differ ?
