I'm considering running my 1969 340 Barracuda in PS, probably D/PS. It's an original 340 car and you don't need a rollbar in PS. I don't want to hack up the car, but I'll have to figure out how to install a driveshaft hoop without hacking up the floorpan. I have another 340 on the engine stand with TRW replacement pistons. Just a cam change and I should be good to go there. I'll probably switch over from the 4-speed to a 727. I have a 9" converter that might work pretty well for PS.