Hey guys question may o already came up once,  but i cant find anything on it so if any one can help plz do before i do it and waste my time and money. okay i've already got the stuff for free and now all i have to do is put it together  in my da teg. is it worth it. oh yeah and i also have an jdm h22a getting ready to go into another da teg. is that one also worth it? plz anybody.....  

sorry guys i meant dc tegs. the both of them.  

From my understanding the b18b and b20b head are exaclty the same.  The difference in power is made up from the intake and header design.  heres a good link.

http://forums.beyond.ca/showthread/t-41830.html