37s in the FOX? Since the WR in the FOX is only 44.74 I assume you mean the FO8?
A few setups here:
http://setupfield.teaminferno. ... ar_id=23&p_version=S2
Basically for the FO8 at KY Oval you need the suspension full stiff, maximum tyre pressure, raise the front ride height above the rear (an exploit but you'll need it to be competitive) and put lots of positive camber on the left wheels.
The fastest I've done without a draft was 187mph, and it's normal for me to hit 186mph on a lap.
Edit: It also seems like both wings set at 2 degrees is the best way.