The only potential obstacle to reaching 700 h.p. in either case would be the hydraulic cam.......I am assuming we are talking N/A.
Probably easier with the Hemi I think , so if you can cash out of the parts you already have , it makes sense.




I agree,the heads will do it with the right combination.With a hydraulic it will take getting everything scienced out to a higher degree to make it work. A lot of compression and a big solid roller make things easier,that is why most people go that route,IMO.
Keith