Great article on the Street Rodder Website. Great link Tango I am going to install a "mother thumper" camshaft in a small block chevy I am going to be building for my Graffiti coupe soon. If you want to hear all of these "thumper" cams idling go to www.youtube.com and type in "thumpr cams". It will bring up a post by Comp cams which has all of these cams idling on a dyno. Great way to hear what your idle will be like! Good luck! Don jr.