you want to have you throttle set to whatever it needs to be to maintain a safe sink rate.control your air speed with the elevator.as you bring the nose up with an engine at idle you will at first climb a little till the airspeed bleeds off then you will begin to sink,also as the nose raises you have also increased the angle of attack of the wing which will in itself add lift.what you have to do is ballance the engine rpm to the amount of elevater you are holding to maintain either a safe sink rate[glide slope] or maintain altitude till you reach the threshold of the runway.all without stalling.practice at altitude first but you will learn that you can make your final at just above stall speed,one word of advice,if a wing tip drops it is a sign of a stall,immediately correct with rudder and increase your throtle,do not try to level the wings with airlerons until your airspeed increases as this could cause a nasty snap.while your airplane looks like a warbird it is really a sport type plane and alot easier to fly than a true warbird that has a wing loading over 30 oz/sq ft