Yes it sound silly but about it misfiring due to octane. But i've had this problem since BP went to 91 octane. So i think all the gas around my area is on the bad side. I wish we had a sonoco or mobil station around but none in site. I have just started to use the outlaw octane booster. They was out of the lucas octane booster. I've been trying to get everything else done be for getting the car tuned. The car pull good throw 3rd and 4th but will try to adjust shift point next time out.
Where do you shift and launch at?
I also ice my intercooler while in the staging lanes.