OLDHEAD HERE......ARE YOU RUNNING ? I went back to the track last week,Made 2 run before the rain with one 624 nozzle and went 9.19 & 9.15 at 151.Want to try 2 nozzles.. Then the boost goes from 22 to 27,I think it will go 8.80s.Then the Nitrous..Drove to track (25m)........Good Luck....Oldhead