there are probably efi stuff for about any make/model engine out there and you probably otta take a look at oem type stuff----might be a lot cheaper to do and you can find parts for them at any dealership if your on the road away from home---------keep in mind that any of them will require O2 sensors, higher level of temp control(both coolant and intake temp), some type of trigger and throttle position sensors, MAP,MAF and rpm/speed, especially with automatic trans and lockup converters-----also a higher pressure fuel supply system--------

I personally would stay away from the carb type throttle body systems UNLESS they have sequential injectors located in the ports , not at the throttle body location..