Done a bit of prep work.
I have no cats! (Dont ask) so I raised idle to 920rpm and temps to 95*C. (hopefully if my 160* thermo lets it get that hot!)

Was going to leave it open loop, but it sometimes it sits a bit too high or low. Emissions here in UK measure Lambda which needs to read 0.997 to 1.030
So I cant lean it out to kill my HC count.. Also it needs pretty tight control. So Im going semi open loop at the 2 speeds they measure, idle and 3000rpm and have leaned out the switchpoints a tad.

Fingers crossed the cam is small enough to pass without cats. As my next upgrade (Dual 3" exhaust) will rely on the results.

Off to check the wideband AFR.