What's stopping you from doing the bolt on stuff, such as the drag header? Im not familiar with a "megaphone". Do you mind explaining what that is?
Also, do you have any desire to be up near the 300whp mark? As you stated earlier, it's pretty much a track only car as it is... What's stopping you from being the best? Or trying to be? I have no doubt, because of your setup, that you have the drive, and the ability to be one of the top power producers in your class. If not the best.