From the archive of Northeast photographer - 📸 Richard DeLibertis. Another awesome image from Unadilla. This one comes from the 1981 USGP. While the GP was a 250cc World Championship event. The 500cc support class also brought out some great racers. Gary Pustelak (50 - Husqvarna) and 3-Time 250cc National Champion, Tony DiStefano (103 - Maico) going at it. 1981 250cc USGP, 500cc Support Class. #unadilla #usgp #tonyd