Thanks,guys! Hey,Bobby! ...try to not melt! It's been HOT everywhere this Summer! Record days reaching 90 or above,here in the Detroit area! Thanks for the advice,ALL of you! Dwayne is definately one of my "go-to-guys"!!! Sounds like the 8519 will do just fine! Todd,from Competition Wedge,calculated the CR to be 10.87:1. Should be fine on pump gas! Randy B.