High speed stability issues

I have 2 tongues at the back of the hood that slide into slots cut at the base of the cowel. 2 hood pins up front and 6 Dzues fasteners (3 per side) up along the fenders. Ya a couple more pins in the front certainly wouldn't hurt. Hoosier tires all around. There skinny front runners 4.5 by 26 up front and full slicks in the rear.