how about taking an old motor, sealing off the ports, and put one-way valves, in the top of the head. Use the piston and cylinder of an old larger engine to pump measured CC's into a running china girl. Like the 68CC engine pumping air-fuel into a 49 CC engine with the crank-shafts synchronized.
One supercharger method is delivering discrete measured pulses versus a constant blow/squash. I also remember we lowered the compression ratio. big chev 454 I think at 7-to-1 with 14 lbs boost presure at the manifold. I cant remember ther numbers.