Minimum weight for the class, with the motor and tires I want to run is 3150. I'm actually shooting for 2600 before ballast. Not sure if I'm going to make it there, but if I can, then I have the option of running a smaller motor in order to run the lower class minimum weight (2750). What all have you done to your 79? EDIT - Nevermind, I remember now. I can probably help you find the class for it. I'm pretty sure you are a CP car, but I can check. In most cases, no matter your level of prep, c-prepared is the fun place for second gens.