Need help w/gear and slick size on a 402 Duster

Thanks for all the info guys, alot of good suggestions. I'll hang on to all your input. I appreciate all of it. Can't wait to get this 402 stroker rolling.
I've been looking at the chassis book and it looks like I should be shooting for a 12.05 E. T. if I do things right and the advertised H.P. rating is accurate. Taking 17% off the engine I get 361H.P. at the wheels, w /3200 lb ( estimate right now can always make it there) Duster, End up with a .113 P/W ratio =112mph Qtr., Auto,=12.05 E.T. using chart 9 and 10 on page 355-356, w/ Good Chassis.
Looking at the Tire Diameter formulas at 112mph I get: 27" w/ 3.91 @5500, 28" w/ 3.91 @5300, 28.4" w/ 4.10 @ 5500, 27.4" w/ 4.10 @ 5700, 28.7" w/ 4.30 @ 5700. I hope I'm doing this right? Correct Me If I'm Wrong- Here, I'm sure experience is another thing compared to these formulas.