Nice! Lol....."posi" is a GM term for limited-slip, "Sure-Grip" is Mopar's, hence the callout....We as FABO members are obligated to...lol!
I was curious how You mixed/switched from, automotive & av fuel....
I used a three way ball valve up front. At the track I flipped the valve, removed a bowl screw from the Holley, turned on electric pump to flush with avgas. Race.
