I need some info and differences between an H22 throttle body and an H23 throttle body. Is there a difference in diameter, is one of them missing something from the other? I'm doing a vtec head swap, and I got most of the part I needed. The only thing that would pull my pocket right now is the TB which I can't afford to get new at this time. Can I use an H23 TB on an H22 intake manifold? Thanks a lot everyone for your help. John.