When you leave the track, they will be shot. It's pointless to use higher octane unless your car is setup for it. You're going to make less power with the 110. If you're dead set on it, I've used VP C10 Unleaded with great results in my old nitrous car.
It will not run as good with race gas but the leaded gas will take a long time to foul up your 02 sensors. As in years. I used race gas for 4 years and never changed my 02 sensors
Its going to make your car run rich... I dropped from an AF of ~13.1 on 91 octane to ~11.1 on 102 unleaded. Like stated above, if your car is not tuned to run the higher octane, you will not gain a thing and will likely loose some ET.
__________________ 1999 Pontiac Trans Am. A4 - 3550lbs
11.61 @ 115 N/A. 1.55 60'
10.71 @ 126 on a 100 shot. 1.48 60'
octane is very simple. It is the resistance of the fuel to combustion or burning, If you have 10.1 compression than 91 or so will be fine. As you push the compression higher you will need more octane to avoid predetonation. Nitrous and boost both need higher octane so when cylinder pressure rises the fuel doesn't combust before it is supposed to. If you run a higher octane than you need you will lose power due to the fact that it will be harder for your engine to burn which results in a power loss. As for leaded fuel it will mess up your cats and o2's in time but it is actulally better for the mechanical parts because the lead will act like a lubricant. Like sulfur in diesel which they are also starting to remove to almost nothing.
I am using VP MS109 with awesome results. If you are on a power adder, I would recommend it. The bonus is that it's unleaded and has a crazy high MON rating.
If you are on a somewhat stock motor, as said above, race gas will more than likely hurt you rather than help
octane is very simple. It is the resistance of the fuel to combustion or burning, If you have 10.1 compression than 91 or so will be fine. As you push the compression higher you will need more octane to avoid predetonation. Nitrous and boost both need higher octane so when cylinder pressure rises the fuel doesn't combust before it is supposed to. If you run a higher octane than you need you will lose power due to the fact that it will be harder for your engine to burn which results in a power loss. As for leaded fuel it will mess up your cats and o2's in time but it is actulally better for the mechanical parts because the lead will act like a lubricant. Like sulfur in diesel which they are also starting to remove to almost nothing.
Im at ~11.5.1 on a stock bottom end motor... I see no knock on WOT on 91 octane. My 1st thought is that higher octane would help, but as I found out, and like you stated, it richen'd up my tune and I lost power. NowI just use the 102 octane in my stand alone and jet accordingly.
__________________ 1999 Pontiac Trans Am. A4 - 3550lbs
11.61 @ 115 N/A. 1.55 60'
10.71 @ 126 on a 100 shot. 1.48 60'
Sunoco 110 Question? 
