Optimizing a standalone injection system can be very tedious and requires the patience of a saint. Without a dyno and a wide band 02 sensor system similar to the innovate, it would be doubtful that you could tune to optimimze the engine much beyond stock or even have worse driveability. There are so many simple ways CIS or Electronic fuel systems can be adjusted to add more fuel. As stated, until you can improve air flow you are not going to find more torque and hp with a stock cam, compression, and valve ports. I am opposed to even allowing standalone systems in IT. This rule could drive a wedge between the haves and the have nots. It sounds like the rule wording is a bit up in the air. I'd recommend holding off on buying a tuning a standalone system until the wording is cleared up.