Drag racing every weekend and lately my 60 foots are going up not down. Was running 1.58's now its up in the 1.70. The only thing that i changed out was the stock tire 190-55-17 to a shinko 190-50-17. Any buddy ever have issues with this. Also change stock front 120-70-17 out to a shinko 120-60-17. I still leave the line the same.