Well, I guess it's too late to offer advice, but the Crossfire system was so named because it's barely real fuel injection. The intake was basically a carburetor system, 2 spots on the manifold for carbs, each one feeding runners to the opposite side of the engine ("Crossfire") to get good runner length. Intead of a carb, though, they stuck a throttle body injector, basically a fuel injector in a carb venturi. It could be controlled electronically, so emissions needs were able to be handled better.
So instead of a modern port fuel injection system, with an injector above each intake valve, you had an injector way back at the beginning of the intake path, top of the manifold, feeding four cylinders, and you did that twice.
It was a stop-gap at best, a way to meet emissions regs while the "real" system was still being developed.
So they skipped a year, still couldn't get it right, but finally the '85s had a decent system on the motor.
Nobody actually wants an '84 Corvette!