I'm surprised the Mod Man works, it's a shoebox with stubs attached, like a 1950s Crower U-Fab.
Must be some voo-doo inside to justify the price...

Advantages to individual port injectors (vs. wet manifold):
1. you can adjust each cylinder mixture separately for both distribution and temperature - with a wet manifold you're back to ditches & popsicle sticks
2. clean air will follow the vacuum pulses, where suspended fuel droplets will fall out, then re-attach and go somewhere you don't want

Just curious: no V8 engine has its intake ports directly opposite each other (#1 and 2, etc.), so why is the manifold plenum a rectangle? Shouldn't it be a trapezoid, with the short sides (front & rear) and port runners directly aligned with the ports, and the carburetors likewise (angled)? Same length from venturi to valve left vs. right?