[kwmech]

Do not plug the map sensor into the T assy. There is a port on the rear of the throttle body unit itself that is specifically for the Map sensor. Keep the vac hose as short as possible and mount it with the vac port facing as close to down as you can. There may also be an issue with the T as that is where the fuel lines come into the rear of the Throttle body. I had a major problem with my big block and an edelbrock manifold