m/t sportsman tire heigth

4.30 gear and 29.0 tire and 67-7000 r's puts you at 135-140 mph. I seriously doubt you have the engine for that. 135mph in the 1/4 is equivalent to a 9.80et..........In my opinion you'll need a shorter tire and more gear............or a throttle stop....lol.

To run 11.5 which should be around 116mph and to clear the traps at 67-7000 you need a 5.13 gear with the 29's and a 4.56 with a 26.0" tire.

Also, with the 29" tire and 4.30 gear at 116.0mph with a little conv slip you would go thru at 59-6000 rpm's.

My advice is to run it as is and get some data (incremental numbers and mph) and decide what you need after that.

The maths may tell you that but it will not happen. Converter slippage will seriously dent that equation.