I would recommend running a bigger tire 30" should work ok with the 4.88 putting you through the traps about 6500 for about 120mph... Or keep the 28" tire and go to 4.56:1 should be about right.... Rule of thumb for shift point is 10% higher than power peak then fine tune higher or lower from there. Good luck with the Pinks deal... I went last year and had my quickest time ever the one run I got on test day before rainout... Day of the show both my test runs were off turns out I broke a valve spring on my one test run (d'oh!)

-Chris