The creation of fuel injection was and still is for emissions purposes only. So if it's a move to TBI then it's politics and has no place in motorsports for TBI offers no performance gains over carburetion.

Some horsepower will be found with PFI for it will allow for a dry manifold. Dry manifolds allow for experimentation in runner length, shape, and area which has a direct effect on ramming; thus the tune will be dependant upon the runner design. The race teams will find themselves running different manifolds for different tracks the same as they do with gearing, shocks, alignment, etc.

It's about to get alot more expensive for no good reason.