I saw this setup in a recent Magazine. It comes from Retro Tech in Corona Cal. The TB looks like a Holley carb, and a return line to the tank is not required. It looks very interesting. The system is installed and setup with some base information.Then you drive it, and it programs itself from there. No laptop required either. Not cheap, but it sounds like about the easiest setup. F.A.S.T. (a division of Comp Cams) has a similar setup.