A. 2 Wheel Drive 4 cylinder B. 2 Wheel Drive 6 cylinder C. 4 Wheel Drive 4 cylinder D. 4 Wheel Drive 6 cylinder E. Pure Stock 2 Wheel Drive V-8 335 and below F. Super Stock 2 Wheel Drive V-8 335 and below G. Modified 2 Wheel Drive V-8 335 and below H. Pure Stock 2 Wheel Drive V-8 any cubic in. I. Super Stock 2 Wheel Drive V-8 any cubic in. J. Modified 2 Wheel Drive any cubic in. K. Pure Stock 4 Wheel Drive V-8 335 and below L. Super Stock 4 Wheel Drive V-8 335 and below M. Modified 4 Wheel Drive V-8 335 and below N. Pure Stock 4 Wheel Drive V-8 any cubic in. O. Super Stock 4 Wheel Drive V-8 any cubic in. P. Modified 4 Wheel Drive any cubic in. Q. 6 Cylinder Jeeps R. 8 Cylinder Compact 4 Wheel Drive S. Unlimited 2 Wheel Drive T. Unlimited 4 Wheel Drive U. Deisels V. Buggies W. Semi Trucks CLASSIFICATIONS: PURE STOCK - All engine components must be factory stock, intakes, exhaust manifolds, carburetors, no internal changes other than stock replacement parts, no gear ratio below 4.57. SUPER STOCK - Headers, dual plane manifolds, any carberators as long as single pump and vacuum secondary, performance cams OK, but nothing radical, no gear ratio below 4.57, car engines ok MODIFIED - No Supercharges, no blowers, no nitrous, no trans brakes, no paddle tires, chopped up trucks ok UNLIMITED - Anything |