L77F85

hey guys i just picked up a complete 425 carb to pan from a 1966 Toronado. it appears to be mostly original with the exception of one "B" head (probably the original) & one "C" head with A.I.R. plugs. if i wanted to find another olds "B" head to match the other "B" head on the motor would it need to be from another Toronado or would any "non Toro" olds big block head work? i remember reading something about Toronados being 39 degree vs 45 degree & that toro blocks use larger lifters or something.

thank you