i would use a v6 engine .
WTF? Another random gem from agillot. I think you mistook this thread for twitter.
John, the car looks great and I bet it sounds nice too! There are always articles in Hot Rod and Street Rodder magazine about FI conversions on carb motors. You can go the easy route with a bolt on system that looks like a carb but is FI and basically self-tunes (just need an O2 sensor I think), to a full on FI system with fuel rails and nozzles etc (megasquirt, BigStuff 3, Atomic etc). The last issue of Hot Rod I got (maybe 2 months ago) had an article in the back where a guy had a chev truck that he had a shop convert to EFI. It barely ran, and 3 shops had no luck in getting it to work. So the magazine helped him get it fixed up. A guru in the US managed to guide them over the phone to sort it out. It was interesting to read about how the original shop had screwed it up so badly, but now that it was fixed, the guy loved it.
My recollections from reading the various articles was that the bolt on systems (like FAST) are a slight improvement over carbs (easier cold starting, better throttle response) but economy and power were not much different. The full systems gave better everything, but obviously cost more and are more complex to set up - need to know car weight, engine, cam, dif ratio, tyre diameter, and what you want (power, economy etc). They really need a dyno to fine-tune everything.
Hop on one of the web sites such as this (Electronic Fuel Injection - Street Rodder Magazine
) and search for fuel injection.