19s are hopeless for drag conditions imo,ive tried it and learned the hard way sure some guys are getting good times but what kind of hp are they producing?
if they were to race again with 17" rims on sticky tyres they would get an even better time, all i know is when i changed down to a smaller tyre my time improved and then improved once again once i switched to semi slicks,all this matters when it comes down to chasing the the absolute best time your car can achieve. your wheel and tyre combo will also determine mph,i was getting a better mph with 19s eg 133mph now im getting something like 125 mph
personally i think going big wheels and street tyre to the track is a waste of time.