lol... thanks mate... although the torque increase is there I have yet to dyno it.
Would be tricky to get an accurate comparison though as the engine needs to be cold to install the spacer kit.
Ryan, as per the first post... the original was 17mm as that was the size aluminium we had access to. It was modelled of the 20mm aluminium TEPS unit. When I switched to Bakelite, I wanted to go with a taller spacer to see if there was a noticeable performance increase (unknown) and also so it could soak up a bit more heat from the engine due to the larger area.