Basicly for performance you don't want a front head on the bike at all.

Both heads want to be the ones with the centrally located plug.

re. poor performance;
if someone has used a front head on the rear (either on purpose or not) of an se/r hybrid engine in an se chassis it's probably had some real problems in the past and they've just done enough to get it running and that's it, hence not set up too well and poor performance.

I'd get it back to standard (including the jetting), All the info is on the site, just set the bike up as it should be with the powervalves set right, all hoses etc properly connected, a rear head on the rear and a front on the front and a standard airbox. It should then run like a dream, they're really nice bikes to ride in standard form, vastly better than the RGV of the same generation. Then you can take it from there if you so wish.
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