The car runs fine on 89 octane but since a fill with 93 is only an addtional $2 I usually run 93.
I have not run it down the strip but I have one of those accelerometer devices that gives you 1/4 miles times and speeds. I have an issue right now with the car launching (a lot of wheel hop resulting) and under hard acceleration the the clutch hangs up (hope the sub frame connectors I plan to install this week end will help). Also since trying to make hard shifts I have discovered the shifter I am using gets balky so I have had to shift slowly.
Anyway, with those issues the car runs low 14's at over 100 mph. Based on the trap speed if I can get the wheel hop, clutch issues and shifter sorted out the car should easily run low 13's.