727 Build for Mid-10s

mopowers said
Do you have a link??? It's not on his youtube channel: John at Cope Racing Transmissions

But did you leave the plastic vent baffle in place? That was my question.

This is a 2 part video. Part 1 he talks about the drilled hole in the drum. Best to watch both these video all the way through. Lots of good info and explanations.