[GT40FIED]

For the most part those kits don't work well unless you stay within their power capabilities. For a less powerful engine you'd probably need to swap out injectors and make a few tweaks to the program. You *might* be able to modify the injector's duty cycle to modify the fuel output...but that probably wouldn't work too well. As far as I can tell, you'll need to switch to a GM factory distributor if you want control over timing advance. Holley's site has a list of what will work. The sensors should be pretty minimal...none of the ridiculous crap you find on factory cars, largely because you don't need all of the emissions stuff to make the DFI kits work. The 3 bar MAP will work with even an N/A motor. It just has the ability to measure more. For the blower...an F series would probably be too big for the street...it'll suck a ton of power just to turn it and you'll probably never realize it's full potential. And you can use the old 90* elbow but you'll probably have to modify the bonnet since the kits Procharger makes are for use with a carb...not TBI. Plus bonnets are a total bitch and can have horrible sealing issues. The tunnelram stuff works better with EFI...but not by a whole lot. The computer will act as sort of a plane for the manifold, but won't completely eliminate the effects of the tunnelram manifold. As for power...I haven't a clue.