what solid cam is equivalent to a hyd 268 ?

The reason I don't go external balanced 360 is because I would have to balance the oem 9.5" fly wheel which I do not know if I can or know how to. school me on that and maybe I can be convinced to do a 360. and I don't want to be changing the bell and all the other items for a 10.5" clutch assembly.
I do love that 273 though , even though it doesn't have much power. the combo that I had in my 273 rocked my world , it was fast enough for me . just saying . that car sounded like a big block , that is what most people said .