throw the 350 in it and put Nova stickers on it and head to a super chevy show!!! Guaranteed to win it's class hands down. If anyone asks about the car say it is the Canadian model.
Regarding the hypothetical question, I'd drop that mother in and beat the snot out of it. But then again, I built & raced GM cars (Nova, Impala, Malibu and Firebird) for over 30 years before admitting my deep seated desire to own & build a Duster 340.