I'm currently working on a report in one of my mechanical engineering classes which is on how gasoline engines have advanced in the past 20-30 years. I'm trying to make a table comparing vehicle weights, engine horsepower and torque, and gas mileage of the earlier engines to those of today. Naturally I have no problems finding these specs for late model vehicles but I'm having a hard time finding info on older trucks. So basically I need a place where I can find this information on GM, Ford, and Dodge full size trucks, and mainly just the small block V8 motors (305, 302, 306, 350, 351, 360). Thanks in advance.