EDELBROCK PRO FLO 4

They should just design a single plane intake manifold with similar dimensions and design as the their standard LA Air Gap and Magnum Air Gap with enough fittings in the water passage area for both a factory water temp gauge, Pro Flo temp gauge, fitting for the heater hose, etc. Also, same height as the Air Gap to fit under the hood easier. That's just my opinion (not like anyone asked :p).