When I built my old Logghe altered I added a front wing. It was designed with side sponsons that were at the minimum legal height at rest, and maximum overhang. At the big end it added a lot of downforce. The anchor points were urethane bushings.
One time in the finals I ran a digger and the guy's wife was at the finish line watching. She swore - literally swore - that her hubby's front wheels were ahead of mine at the stripe.
Do tell?
Lots of races were won by 30" or less.