Stage 5 Hemi conversion heads

I have a friend who did a low deck (470) Stage 5 Hemi in a 70 Duster a few years ago. Intakes are pretty much unobtanium if nothing has changed. It ran down in the 6's in the 1/8th mile. Somebody had to have it worse than he did, so he sold it.
Stage 5 now offers a lo deck intake.