The A9L is configured for 19lb injectors, and the stock 55mm MAF.
You can swap that MAF for the 94-95 Mustang 70mm MAF, but you are still limited to 19lb injectors.
That assumes ALL stock hardware is used...
If using an aftermarket MAF, then the options increase...
If getting a custom dyno tune, then the options are endless...
Will 19's be sufficient for your power level?
jason