23 XLT 305/50r20 Proxes 3 and 1” lowered suspension.

[Expedition Racer]

I’m needing some V rated tires for the Silver State Classic this spring. We will be competing in the 140 tech class.
I installed MPT tunes and in the daily driver/tow 91 octane it will run 135. Its Montana and I could see over 5 mi in any direction.
Anybody lowered an expedition and run 305/50r20s on stock rims?
Is the stealth lower than the standard suspension?
Im currently running 275/60r20 Michelin's H rated
No rub and they are 33 but app. 11” at the buldge. No rub
Any advice is welcome.
Thanks, Eric

 

[Expedition Racer]

Sorry I posted in the wrong section

 

[slow3v]

This is cool, following this thread.

 

[Expedition Racer]

Heres the 23 and my co driver after this years Silver State classic