The Boss Heads, Crank, Rods, and Pistons are all Nascar Used Race Parts. Pistons are not going to work with the Supercharger.
Personally I would use aftermarket Rotating Assembly for the Supercharger and either keep or sell the original Race Parts.
I can offer the buyer a discounted price on the Rotating Assembly as I am a Dealer for Diamond Pistons and Molnar Technologies. Above Added: Wed February 14, 2018, 7:33 am EST