59 bhp is more than enough - the reason people don't agree is because not many people have dyno proof, i have, a fair few too, the problem is i've been to some quote me happy dyno's, and seen near 100bhp with just the janspeed, please note the near, but have seen 90 on some others, which is more realistic
titch - it will have been 102 @ calc fly
in regard to how rich it runs, no richer / leaner than the standard map.