I love the best piston you can afford, I love aluminum rods......etc, etc. For the street you can use what ever you can get the best deal on. Until you get some longtime experience built up, I always recommend 1.5 rockers. It's not prone to give you geometry problems and really helps you just keep the thing running smoothly while you get a feel for your application. As for now stick with your idea and tune and adjust for your best running combo. As you get more and more into what you want to change, do it one step at a time and slowly.