Maximum HP in 904 Transmission With the following parts:

lol... yeah. Law... right LOL...
I gave away 9 727 cores a couple years ago. I couldnt give away the 904s so they got recycled. But, they have their uses... I'll be running one in my '65.

Can you be more specific about that retainer? Maybe a part number or where to get it? That's actually something I've never added. Since I'm probably gonna use this 999, I'd like to make it as bulletproof as possible. Thanks.