Well its had its first proper run out with a friend following me in the csl's M3 derived younger brother just in case
50 miles with no issues and It drives soooo well. The new engine is glorious, bags of torque and power while being as smooth as an injected one. The new mapped ignition setup means the webers start and idle at 1100 rpm from dead cold with no throttle input, perfect!
Really quite pleased that I have finally got it sorted. I would upload pictures but it doesn't seem to be working right now.