C S&s Eng?

Hello all. I just bought a used 318. the first thing that gave it away as no your ordinary 318 was the eddy 4-barrel. then was the M/T valve covers with a little metal tag saying "C S&S ENG" So i assumed this was just a little built engine. then i took it apart. It had double valve springs, atypical pushrods, heads been planed .026, custom cam, crank has been lightened and the pistons have been drilled and lighted, has a windage tray, and oil temp gauge in the pan, the rod caps for some reason have been beveled, and has been ported and polished. NOW the question, has anyone heard of C S&S ENG? anyway to search? ive done yahoo and google but no results...THANKS!