best 273 mods?

i do have an eddie torquer 2 manifold here, should be able to find a 450 - 465 holley, was hoping to keep away from a complete rebuild, so the 8.odd comp. will prolly have to stay (but a mate that knows the car tells me they shaved heaps off it years ago)

what about my new cam (3500 to 6500 solid) and a standard 904 and 3.23? is it too much without chasing a stallie?

oh.. theres also the option of throwing some small valve 360 heads on her, have hears with a bit of relief around the intake valve it can make a good low budget addition.