Using seperate uel can with VRO

[Joker2]

I'm trying to isolate what I think might be bad gas, I was thinking of using a seperate 6 gal. can that is full of fresh gas at a 75:1 mix ( a friends )to run the engine along with the VRO hooked up. I know it might be a little rich but if it runs I can get closer to my suspicion of bad gas or water through my stripped gas cap.