5.9 Magnum exhaust/intake combo help

RT heads were Mopar Performance and will have RT stamped on them. Never put on a RT from the factory. Aftermarket only. Also its my understanding all factory Magnum heads 5.2 and 5.9 had 1.92 intake valves. Now I could be wrong on that but all the ones I have seen are 1.92. Also I believe the 5.2 ran a bigger cam than the 5.9.