1. 93 Octane, always from the good stations.
2. It's ~11.5 on the nitrous and around ~12.5 off.
3. Not sure but Doug did the tune in person so it's probably very safe and correct.

I'm pretty sure the damage was done before I got the car in Doug's hands. Before this it was in the hands of a sub-par tuner and the car has been 100 times better since Doug has been my primary tuner. I will not be spraying on the new plugs until I verify that everything is ok on the dyno.

 

Ok--Doug is a great tuner--I am sure your in good hands now. But if you ever go to the 1/4 mile track, I would still put in some 100 octane for cheap insurance. In the past when I would run the 1/8th mile--I usually wouldn't have a problem because your only squeezing for 7 seconds---but in the 1/4 mile once in a while I would loose a plug on the big end until I ran race gas.