What If Build Ideas...for Land Speed Racing

HP is easy. I’ll take the aero all day long and twice on Sunday.
I am leaning that way also. It does make it just another wing car then too...lol. hard to even say those words.

So. If a 1968 HP 383, those should have a positive deck height if my research is right. Can you add a 0.040" head gasket and run closed chamber heads for E85?? Cam selection for factory short block but higher end hp on a wide lobe separation angle?