Hello, I recently purchased a 1988 Olds Cutlass Supreme.. I am attempting to gather information about the car. I was told it was a 442 but I do not believe it is. How can I tell what I have. The car has 307 engine with a 200 transmission. T-tops, center console shifter, dual exhausts, spoiler on the trunk. Also I am in need of a few minor parts. I need a wiper arm for the passenger side. When I put the year, make, model in the parts store it comes back with a bolt down type. The wiper arm does not bolt down. Any help or information is greatly appreciated.