What If Build Ideas...for Land Speed Racing

So, on a 1968 hp383 motor with what I understand has a positive deck height piston, going to a closed chamber head style with max wedge ports with net much higher than the 10:1 and the flow at the upper RPM needed? Then run on E85 or race gas? Then a large cam with a wider LSA? Likely not enough for the goals, but closer than what I have. Combine that with as much aero as I can think of that fits in the rules, 4 speed and 2.76 gear. The tube chassis fits me in Competition Sedan or Modified I believe.