Suggestions for new design Aluminum Mopar SB clean slate (kind of) cylinder heads

My cousin is running those heads on a 408 .700 lift roller. 3000 lb 69 roadrunner has been 6.13 at 111. He bought them off Bill

Yep, same ones. That is running good, but the heads you just bought will run that good, or better.
To me, I would go with an Indy head, back then which has/ had more potential. Which is why, along with cost for the total deal is why they never took off.
I picked on Bill back then when he went to the dark sideā€¦.constantly:lol: