Oh Ok tHaNkzZ for the opinion
I'm very confuse because over here in Singapore, my friend spend $30000 Singapore dollar(estimated 1USD = 1.756SGD so 30000 SGD = 17079.00++) to blueprint his WRX STi So i think it cost a big big bomb over here to blueprint the engine . . . .

And one more thing is . . if let say i wanna rebuilt an engine . . lets say i order a custom rebuilt B20z from www.RandDmotorSports.com with a B16B head(built according to www.crvtec.com) and ask for a blueprint . . after its done and ship over to me . . can i still change the valve spring piston etc. ? ? ? And can someone please roughly quote the cost you people spend in getting your engine blueprinted ? ? ?

Sorry for irritating you all with these kind of question And thankzZ for all the replies