its not just that it may need adjusting,i may need to buy new rockers,or it may be somthing else all togther,all we have pretty much pinpointed is that its from the top end,and it has a sound it make thru all rpms,but cant really be heard well until 1500 rpms...it sounds like my last car,which had a spun bearing...

Anyways,im basically asking if either of those ebay litings are a valid upgrade,or not worth the money or power?can the b20b head actually bold on,and what should i expect?the guy that had work done to his b18 head,and already replaced the internals,is that worth while?i dont want any downtime,and i dont have the spare time to waste doing it myself(right now)

If i just bought another damn head,pop one off,pop one on,no adjusting or replacing,im just wondering which is better?

I will know this comming week when i drop the car back off at the mechanics whats actually wrong with the valves or rockers or WHATEVER....