1.0 These cheap resprays you speak of.. hook a brother up?
See steveo knows whats what.. build the 25, high crown pistons (20 thou bore if u want) twin scroll is better for flow and response so do it! maybe a little bit of head work to increase midrange, cause who wouldnt want a head job with all that work
Then if you go with the 30 ill take the bottom end off your hands