Seeing as I'm looking at dyno time to break in the engine I'm putting in and then more dyno time to tune it, I'm curious if anyone here runs a wideband to do all of their tuning instead of just a dyno. If I run a decent PLX wideband and just do the suggested method of tuning in the manual, would that be sufficient?

If no one has an answer for this I'll move it to a different section but I figured I'd ask. Do any of the octane boosters (tauline, race gas etc) NOT change readings on the o2 sensor? I'd really like to run a gallon or two of tauline in my gas to prevent knocking through the tuning process just as an extra fall back. I could also see this having a problem with the fact that the tauline will burn differently and also take up say 20% of the gas space going in so it would run the engine rich as soon as I put in street gas. Anything you guys do to be a little safe in tuning?