Well one of the top 2 guys was using drag radials and he's pretty much the only one doing so that's still N/A. Hell I did my runs with all season tires, so I should do much better with summer tires or DRs. They also swapped to the 3.08 gears which helped get better times. The point is that not many people here are focusing just on drag racing or even modding their cars specifically for drag racing.
BTW the stock Mustang GT's are making more like 370-390 whp and that SRA gives them a better advantage for drag racing.