I would say stick with a 26x10.5" slick for your power level and 3.73's. a 28" tire will be too tall for you no matter who says it will give you more mph. I went 119mph with 464rwhp and a 3550lb race weight on a 26' nitto drag radial. I went 116.5mph on a 28" Et street, so that should tell you what too tall of a tire will do.
95 rio red cobra #2021
2014 Shelby GT00- Oxford White/Sonic Blue Stripes
1995 Rio Red Cobra #2021 - SOLD
8.8:1 comp. Dart 331, Procharger D1 16psi, AFR 185, Edelbrock RPM II, custom cam, TKO, Glenns 1000hp fuel system.
690rwhp on Mustang dyno