Let me put on hip wadders first and make an observation:
It appears that this Tunnel Wedge intake does NOT have an exhaust crossover, which to my knowledge ALL MR and LR heads DO have. It's only the HR which does not (and the Tunnel Port round intake). Therefore it seems that this picture of a Tunnel Wedge intake would ONLY work on High Riser heads. Perhaps the exhaust cross over IS there and I can't make it out in the picture? SOME aftermarket intakes come with the exhaust crossover blocked out of the intake, thus sealing the opening on the head. On THIS 'Tunnel Wedge' there is no place, I can see, to 'block out' the heads exhaust cross over port.
Big pic of the Tunnel Wedge posted above...
http://www.clubcobra.com/forums/atta...0&d=1154302353
Note on this Dove alloy head the exhaust crossover is NOT there, but it sure is there on STOCK MR and LR heads!