I am also building my whip as a hot street setup, that I could occasionally make a pass or two at a real racetrack.
I have manual 4wheel disc brakes, no a/c and heater has been deleted too.
Most of the aftermarket systems are throttle body injection, I prefer individual injectors for each cylinder. I chose the proflo 4. But if it doesn’t pan out, a carb setup will have to work.
From what I have seen the EFI systems are more sensitive to vacuum signal throughout the whole rpm range. Usually the efi is just a little bit less on the HP numbers, but adds a huge benefit with low maintenance and less trouble if the car sits for a while between cruises.