The setup that most people seem to use is from TWM. There is some work that you'd typically need to do to the TWM setup to make it work on the street. You'd need to have someone modify the manifold to support an Idle Air Control motor for electronnic fuel injection. You'd also need and EFI computer and sensor setup. A good choice there would be a FAST unit. As with any EFI setup, the fuel system and electrical system must also be set up correctly for you application. If you do these things, you can get EFI to work very well on the street. I am currently runing a 383 motor with a roots supercharger and a bug catcher injector had (drag racing style) on a vette and the package is the most streetable performance motor I have ever owned. I have also had Keith Craft biuld me an EFI Big Block Ford setup for an ERA cobra that I'm building based upon the setup that I described previously in this post. That motor made 650+ HP on the dyno. I would expect it will be quite streetable in my Cobra when its complete. Attached is a pic of the motor for my cobra based upon the TWM setup.
