JBAIRD,
I have CSX 284 that I'm building for a customer and CSX 287 for myself. After receiving, inspecting, and rejecting 2 sets of Dove aluminum tunnel port heads I'm getting ready to tell Dove to take a hike. I have spent too much time building my Tunnel port EFI manifold to give up now. I know is sounds crazy, but I was inspecting a set of E-brock heads and discovered it wouldn't be impossible to convert them into tunnel ports.
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Not impossible, but not easy. I'm a stubborn kraut so I'm not going to give up yet!.
--Mike