[coyled]

Mr. fix it, I guess you didn't have a very good experience with a lap top and a speed pro set up. Next time you are asked to tune a speed pro set up, call me and I will help you. Almost all efi aftermarket systems put the injectors at the port. Does hilborn put the injectors at the top of the stack? no, its near the port too. I have been in 3 cars that went from carb to efi with the same intake, and throttle response was way better. Kinsler fuel injection(they might understand this stuff) recomends the speed pro and sells more than any other unit. I am not saying it is the best or the cheapest, just well used and well liked. Scott