hey thanks for the heads up ... im running a hyd. roller in my sb now.. and from my understanding any roller cam was good. so thanks for the info! as for compression ill take your advice as well and go down to 10:1 ill run the highest octane the gas station will offer.. we actually have a station around here that his highest octane is about 98! and lowest is 91! anyways... thanks for the "cam quest" ill check it out!