Port match isn't hard... Infact if you use oem ITR tb you won't need to port anything. If you choose to get true 65mm tb you only need to open up the manifold 1mm...
Think about it, that manifold is designed for ITR head. Even ITR cams would be a nice upgrade over c2 cams. As bau said its not simply pnp if you want to actually get gains from it.
Trust me, I know. It's the trap i fell into when i was a noob haha.
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