Turbo Action 17156 on a mild 340 street Duster?. Help

I used the no low band valve body that you have in a 727. Warmed up 340 with the 508 cam and 10 to1 pistons and 5k turbo action 8 in converter. I got use to the no 1 gear coasting. I stayed in 2nd a lot to save on brake pads. Lol
Now I have an A & A lba in it but have not tried it out yet.
904 has a riveted sprag in it, 727 does not. If using the 727 put in a bolt in sprag.