Stroker motor combonations

Call Mike at Mrl he is a sponsor here and regularly builds 600hp strokers or you can also call Brian at IMM on the west coast ,I haven't heard of any that stout from him but I bet he knows how to build you one .Both these guys are 1st rate , Brian built my 410 ,it's only in the 520/520 range but we didn't go full port on the heads .