Well my 2 cents is, why have a hemi combustion chamber for offset valves / It wouldn`t flow as good as the true hemi head, might as well run smaller narrower chambers, since it wouldn`t have the hemi flow effect to it. Probly didn`t want to be accused of copying the rat !
W/ wedge intake ports, and the wrong shaped D ports too ! Bet it was dog compared to the real thing !--------jmo