W2 head porting observations help needed!

Then I pulled out a bare, brand new later W2 casting, with the factory out of the box valve job, 2.02 valve, they flow 234@ 500, with no work whatsoever, immediately back to back. I know the actual flow numbers seem low across the board, that could be my bench, but as a comparison, 20 cfm increase seems a step in the right direction, but I feel it needs more. The short turn in the early head has a narrower, more oval shape, where as the later head it looks wider, and a bit flatter. Like to get some opinions from some of the head porters on here, help me go in the right direction @pittsburghracer @PRH @yellow rose @MOPAROFFICIAL ..... ANY advice is GREATLY appreciated!