Holley HP users

Im running HP but I used the FAST LS style throttle body with GM sensors and the correct harness, didnt have any issues. Hope you get it straight cause its really a very awesome system.

Steve, when you say correct harness, what part number are you referring to? Only two main harnesses that I am aware of.

HP Harnesses - Holley Performance Products
I am using an early one.

Thanks for the information on the LS TB, that is the way I have been leaning.