Good to see you got your engine back. You have actually a better modded V-15 that what B&E runs

. I know as Rick found some more HP in the crank timing and did the same to mine.
You won't have a power problem getting the ET's you want. You just gotta know how to drive that beast

.
The pawl clutch is one that has mostly a single steel arm that swings out to grab a pin to turn second gear. Our clutch style as you see your own, spreads outward to grab the hub and turn second gear.
This is a custom 2 finger pawl system.
Make sure you keep me posted with your car and engines too.