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Ummm, any specific parts you want to know about? Some are the same, some are different. As far as the actual engine, I think the main difference is that the TII has lower compesasion rotors than NA's.
The only way to lower compression is to take apart the eninge and replace the rotors. Are you wanting to turbo your NA? If you are, Aaron Cake did it and I think he has a writeup on his website.