My kit has an Imperial brand main fuel valve. Since the kit has been sitting so long, I was unable to turn the valve on and off so I took it apart and removed the old packing grease. Of course when I put it back together it binds so bad I can barely turn it. I understand that I need to pack it with fuel proof grease. So, question....is there a better valve that I should use? Or is it worth repacking and using this Imperial. Seems like a quality heavy duty valve.

Model 5 kit, circa '95