Now now play nice.
A 14.3 in the 1/4 for his car considering has mods in pretty good.
I do think with practice at the track and working on his launch
he could get high 13's for sure.
Running nitrous and a supercharger you better have a built block
or you will be running on barrowed time.
Also I agree this question would be anwsered better in the
power adder section.