I just did a set of custom grind Comp cams. I have no numbers to compare because I went KB at the same time. Depending on the goals you have set for your car would help you decide if it is worth it or not. Heres a sound clip of my car with the new cams, this is with the factory exhaust manifolds, CATTED X-pipe, and Magnaflow CB...
Sounds beautiful! I don't have a Kenny Bell so i would have no Idea how to get a custom grind camshaft for my setup. Oh well, I'll keep diggin...Thanks