This info is all over the internet. Try www.zhome.com or some of the links on this page. Off the top of my head, the rear gearing is 3:54 for the manual cars; different for autos. HP was rated at 149, though in today's numbers (at the rear wheels), it would rate less. Tires were 195/70 14s. The cats were only on the CA cars (49-state cars also had a different distributor setup). The coupes weighed around 2850 pounds, 2+2s were about 200 pounds heavier. Yes, each car had a cam and various filters.