Well it seems that you already know that the pm6 is not the correct ecu for the dohc zc. . . . it will run it though but not as well as the one for the ZC.. . . . .If you were going to pay to get the ecu modded why didnt you just get the dohc map dumped on it. . . . .the 9 grand rev limit is not going to do much for you except give you the opportunity to see your rods quicker than any person taking the engine apart by hand to get the rods out.... yeah it works... .its not 100 percent ideal but it will work.... although not quite right either for it. . . . .a pr4 has a little richer map... . . . and is better suited still for a dohc engine.. . . . . .might want to look to see if you have one of those laying around.