Buying an aftermarket head is not an option, he doesn't have the money to do that. He has the 516's that had a lite port job done on them, and they have little run time. What I am trying to find out is, should he run what he has or will he gain enough torque by going with another factory iron head to make it worth putting a couple hundred bucks in to. And, with the pistons that are already in the block, will a open chamber head mill down enough to get 10:5 to 11:0 compression.
Or, would he make better torque using the mopar 484 cam and using the 516 heads he has? He has not yet bought the cam but wanted to use the 509 because he has people telling him that's what they run. I'm being told his heads will not flow enough to use that cam.

Thanks
Dan