So what is peoples techniques? Mine is (mentored by my older mate steve) To first establish a safe ig timing map and get the car to idle well, then on the road set up all the cruise and light throttle AFR, then set the "transition" fueling as the car comes on boost, then map the on boost fueling at low boost, then just keep upping the boost and doing the same. After that i push the timing until im scared or it pinks. It works for me, just wondering if thats the norm? Obviously you may have to re-visit the afr at various stages to get it perfect, i tend to aim for 12 or under afr to be safe on boost and i like it to be 16-17:1 light throttle, richer at lower revs.