Hi guys. Building a mild 383 for a customer street driven pump gas car. Have world products sportsman II heads and will build your typical 383 short. What should I be shooting for compression wise and cam wise to achieve 450-475 hp range? Is it do-able with the current heads? Can this be done with a hydraulic cam or will I need to go solid flat tappet? He does not want a crazy radical idle but some lope is ok. Not sure a hydraulic roller is in the budget but might be able to convince him if its the way to go. Thanks for the help!