howdy guys. I have been an fbody guy for years, but just recently got a sweet deal on an 87 gn, so I guess now I am a gn guy! I don't have a lot of knowledge about these cars so any help will be appreciated. I have a few basic questions right now, as the car needs to be redone. what is the biggest 17" wheel and tire combo that will fit in these cars? Are ratchet shifters a good thing on these cars? What is a nice loud intimidating exaust for the gn? I bought the car with no motor or trans, and am about to buy an engine that is suposedly beefed with no turbo or intercooler. I will get a list of the $hit done to it and post it later to get all of your opinions. Happy to be driving a "black car" and happy to meet all of you guys. Any beginner tips are also greatly appreciated!!