Holly cow 500 HP with a super charger. Do you have pictures of your engine. I am starting to plan a turbo engine conversion but if I could get 500 hp by adding a supercharger maybe I should rethink my plans.
Was it purely a bolt on system or did you have to change the compression ratio?
Sorry to jump off your topic I am just intrigued by your set up. As to the ideal injector size isnt it more of a function of what size injector to run based on the fuel pressure that is being delivered to the injector?
I am not sure if it is more ideal to have a shorter duty cycle by running the larger capacity injector so I am really just throwing out things that I would be asking myself if in your position.
If all of the above does not make sense what I am trying to say is I am not sure if there is a sweet spot for fuel pressure/injector size/duty cycle.