don,t really like indy stuff, but the heads are ready avalible,not really sure about the INDY RP. you will have to talk to ryan, the 449 ryan built me was well over the 700hp.just make sure you don't deal direct with them,service is not a favor, they just think that way, IMHO.
If my memory serves correctly ,my engine was suppose to be built at the beginning with a set of w9 ab's, with lots of CSA, and we were going to be using a tall deck 48* r3 with a max bore,but heyy!!! those blocks are pigs... that stoped me from going that route, then i scored a nice brand new in the box x block,and we went from there, Ryan built me this complete top set up from ICH....not bad for a true 59* block at 770hp and 615 torque. gilberto