I have a JG B16 pro series head with bad valve seals.(I am having it rebuilt) I was wondering about valves. I have seen many replacement valves online. I need to know what kind are right for me? I have a C5 block, and need to know if I can get the regular skunk2/Toda vavles or do I need the high comp. vavles? Springs and retainers are the easy part, but I don't want the wrong valves. What kind do I need? TIA

P.S. the head has been milled down. I don't know how far but I do know it is milled down almost as far as it can go. I just don't know the specs.(I bought it used)