For my 73 Swinger I have a high performance 360, 904 with stage 2 shift kit, and 8.75 with 355 gears. I was running 410 and switched to 355 which was a very nice change.
I drive this car "a lot" and I've been considering using an even higher gearset. Pretty sure I would like 323 but thinking more radical possibly.
Do you still get the seat of the pants thrill with a high performance engine and 276 gears?