I've read your build a few times, and would be a good build for most who want to do a 273 should follow, I know you know if you did similar to a 360 you'd have a lot more power but obviously you're happy with what you done. But for most if they just dropped a good running or a refreshed Magnum between the frame rails would more than enough satisfied with little effort and or thought. Magnums are arguably the most powerful stock small block, with no need for more than highway gears and stock stall and more than enough under 3000 rpm to idle driviblity power.