i just got this built b16 head from my friend for a really good deal. the head is going on a b16 short block. some of the parts in the head is that it has a street port on it, full jun valve train with skunk2 black valves. and jg size d camshaft. im having a hard time finding the rite piston with the compression ratio.

 

dont quite understand what you are asking, but this website with give you a fairly accurate cr with tons of different setups.
http://www.zealautowerks.com/bseries.html

 

Ask a real defined and clear question and we'll give you an actual answer.