cylinder head cleaning

before i put in my cylinder head i just got i need to clean it. im not talking about the valve cover, i mean the cams and everything else in it. any suggestions on what to clean it with? gasoline? kerosene?

all i did when i put mine is was a bit of solvent on a towel and some cheap brake or carb and choke cleaber depends on how far you want to go with it you can always take the cams and rocker arms out and clean them individually