I aquired a D16Z6 Head in great condition with an OBX intake manifold sans the Vtec Solinoid for some PC repair work last night, and my current head is leaking compression like all holly hell. Couple of big questions here: My car is a 92 CX Civic that has a 16 Valve Head swap with a P06 ECU, 91 SI cam, and I/H/E The car when doing the compression test Crank once 40, twice 80, third time 120, and immediatly after hitting 120 it starts slowly dropping off untill it turns over again. While Driving the car, at nearly 4K RPM it suddenly begins to pull strongly *I'm assuming this is because the Pistons spinning fast enough to hold constant compression* Car burns maybe a quart of oil between oil changes. The 16 valve head I had put on the car Had pitted Valves when I had installed it to begin with, and appeared to be, and was most likely off an abused/high mileage engine, and my block only has 98K Miles on it. In the past 3 months since the headswap was the power has been degrading, and the leak getting worse. with all this in mind, would you pretty definatly say the head is the problem and is fucked and the valves are leaking, or is there ANY possiblity this is my piston rings?