i hope u aernt expecting that head to be ported from the factory, i have heard rumor of them being "mildly ported" from the factory, but there is no evidence to prove it, even if you sit a b16 head and type r head side by side, the only difference, is the number on them. The intake valve stems have been steped, and the valve springs are stronger and cams are more aggressive, but these three things dont make it worth the money to buy a different head, IMO anyhow. This is just food for thought. Nice tranny though, although i wouldnt be able to handle that tranny, because i dont like cruising down the road doing, 5k at 80mph.