Drag Racing Tech - What size tire th350 and possible nitrous

Just wanted to see what everyone thought about for tire size on my car it has a th350 and a 3.42 rear end gear, once its dialed in on motor i plan on spraying 100 to 150 shot. With that being said which size drag radial should i go with a 26" or a 28"? ill be running 15x10 wheels in the rear.

275/60 hoosier

How much power NA?

well it hasnt been dyno'd since the trans swap, but the dyno sheet that came with the car when i bought it said 448 that was with a t56.

275/60 I have trapped 130@6800 on motor with a TH350/4.10's/275.60 so you should have plenty of room for nitrous. I'm spraying my combo but only in the 1/8th.

You could prob run a 275-50 and be faster than a 275-60 if you can hook it. Im running a 26" hoosier DR and a 3.55 this year. About the same HP NA but Ill be hitting it with 150+