3 weeks ago i had a misfire on the highway, mysteriously went away. no issues since, would WOT on the highway without issues. yesterday it happened in 2nd gear leaving a parking lot. i dont like it... today decided to do a rolling 2nd gear to 3rd gear pull. once again at aroaund 4000rpm the car stuttered, bogged and misfired. shifted to 3rd, it cleaned up a bit but then bogged again. still running stratified 91 tune, but this tank is 94 (been filled up twice since the initial misfire). only mods done since before the misfire were new motor/trans mounts which requires removing the intake and battery.