I put 1 of 2 new ac systems in for a friend of mine today that's also co-owner of the Upholstery shop that put my interior in our Chevelle, he also has his sons 71 or 2 Chevelle in his garage, the engine builder that built my 489 short block, went over my top end work and dynoed it is going to build him a 440 stroked to 500 cu in that should be in the 700 hp range and run a/c, he showed me a spray out of HOK Candy Purple today, I told him tell everyone its Plum Crazy Candy, this is all for a 72 CUDA 440 4 spd car