Question:

I was thinking about running my car in Stock Eliminator.  What class would my 1965 Nova SS with a 283 cubic inch motor that was rated at 220 horsepower from the factory fall into with an automatic transmission?

Answer: 

You could run I/SA, J/SA or K/SA with your combination.  To get the minimum weight of your car in J/SA the calculation is done as follows.  Bottom of the J class is 12.50 X factored hp of 223 = 2787.5 lbs + 170 for driver = 2957.5 lbs.  We round down to 5 lb increments so your minimum weight at the scales, after a run, with driver for J/SA is 2955 lbs.  You can do the math for I/SA at the 12.00 lb class and K/SA for the 13.00 lb class.