W2 408 Dyno results today !
Trying to read the plugs, if the same plugs were used for the whole dyno session, is really a mute point. That plug does show rich in the low and mid throttle but who cares. It’s an unclear photo so it’s hard to get a good look at the porcelain or the ground strap. And cutting the shell would be nice but won’t tell you anything if the same plugs were used for all 7 pulls and too many changes were made.