The car corners hard enough that Tim had to solve a lot of various oil leaks. A 8 3/4 rear end will leak if you corner hard enough. So will the valve covers and the dipstick.
I did a bunch of machine work on the existing combo to fix the leaks. I used cast valve covers and machined them for o-ring fittings for the breathers. We used a remote puke can for the breathers which should solve that issue.
