Drag Racing Tech - need help with wheel tire combo

I'm lookin to get a Draglite, DOT combo. I need to know how to choose the rear tire size. Should I run a 26x11.5-15, 27x11.5-15, or a 28x10.5-15? I have a S2 H/C car, 9" w/ 3.70. I have plans for a TNT 150 shot next year. Also Would either of those require a 15x10? What backspacing should I use. My rear calipers are already ground down. Thanks for the help! <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

<small>[ September 09, 2002, 07:37 PM: Message edited by: 1BADWS6 ]</small>