Nothing to it really. A hose fitting on the back of the intake under the carb or a spacer that is tapped for a fitting. Slide a 3/8 rubber hose on it and route it inside the car and connect it to a ball valve (I use a 1/2 inch valve) and mount it within reach. While driving to the lanes open the valve to build heat or while parked in the lanes. Don’t forget to close the valve.