mike, I don't think the 80's Vics used them. I believe they used a 10x2.5"? I'm pretty sure the axle hub on the Vic is slightly smaller and you need or should have a spacer machined up to center the drum. I do know Opentracker Racing sells a 11x2.25" drum kit. I know SilverbluePB is using them, you could send him a PM on the VMF.
I found a 69 Ranchero 8" on CL for $50. It has the 10x2.5" drums.