I know a 68 340 barracuda that run F/SA in nhra and he uses a 904......the trans was bought from protrans, I asked about the 727, he said they could now run 904s.

that trans with the 904 liteweight parts and low drag was around 6k.

Tony

70 AARCuda Vitamin C
71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield)
71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas)
71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)