I'm saying this because I did several runs on mine on a hub dyno with various AFRs (I can adjust it on-the-fly)
Running rich 10-11:1 did nothing for power, and WI actually reduced power.
It's when you reach 12.5:1 that it starts to work properly.
It gets better at even leaner figures :shock:, but you may want to play it safe at this stage
.