BOWTIROC

My car wobble violently at high speeds (like 100mph+). It almost feels like bumpsteer through the wheel. The Struts and shocks are new, the Driveshaft is recently balanced, the tires are relatively new. I am kind of puzzled...I do have an aftermarket fiberglass hood, that pins in front, and at higher speeds, it stands up a little in the middle. Could this be causing some kind of weird turbulence? Could it be alignment?

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Black 89 IROC...Mods: 355, 10.5:1 comp, Big Solid Crower Cam, TFS heads, Victor Jr, Holley, and a 5 spd...12.72@ 116.9 with a 2.16 60ft time on BFG radial TA's