Re: 408 Cleveland Cam Recommendation
Fire off and email to John @ CHI. He'll suggest a suitable cam. I'm not in the know with hyd rollers to suggest one. With the 225's you should make 500+ftlbs torque and max power around 6800ish depending on the cam. In Aust here a company called Pavtek does 393's with solid flat tappets, 218cc and 225cc chi heads (590+hp and 500+ftlbs torque). These engine tend to make max power around 6800. I don't see you having an issue achieving your goals with a 408ci engine.
XB Fairmont (street car) email@example.com.