OK, you shamed me into getting my arse in gear & get'r done. Not the crossover tube but a test to see if it'll work before I go that far. Just an oil breather for the right bank & still have the catch can on the left bank. I just put this together with a replacement oil cap, oil breather, and a screened grommet for a garden hose (total cost <$20).

I'll keep you posted on the oil consumption over the next few weeks.