I have a dual EGT fitted and was getting to 1050 degrees on the dyno, which the experienced operator (and RS tuner) thought was pretty close and would peak around 1200 degrees on the road.

I have already fitted 0.5mm spacers under the carbs.

The only difference between the two runs was the removal of the airbox. The airbox already had the 4x 20mm holes drilled as well. Earlier, lower jet sizes indicated a lean situation with the EGT and the fact that it was making more power as it got hotter on each successive run (as I recall). I ended up with drilling the standard jets to xyz as I had run out of sizes! I may end up going down a size as yet, but I do want to run it on the road and monitor the gas temp first.

It is running BP Ultimate - 98 unleaded pump fuel. Squish is 0.6mm. Head volume is relatively large at 14.2, but I did specify to Matt that this is a road bike, running 98ULP. Hermit, I think yours are 11.8cc.. Alloy deposits are a piece of piss to remove - get some drain cleaner and some thick rubber gloves and it will come off (but watch the alloy).

Some custom pipes could be a very good idea. Neal, are you keen to share your experiences? Hermit, give me a call sometime about your barrel..