FAST injectors...pulse width?

[J-440]

I have a 440na with a 2000cfm throttle body with 83lb. injectors and 8.5 comp ratio. I realize this is overkill for a NA motor but the blower will be going on in a few months but I want to drive the car now!! An EFI tuner has informed me that with the current setup I will destroy the motor because of excessive fuel wash. Ok I agree...overkill. But with the adjustability with the FAST XFI can't I tune the pulse width of the injectors to make the car run?