cleaning up the slant six head

Bottom head is stock untouched.......on the top one, the exhaust ports are as big as the intakes on the stock head......also, the top head has had about 0.140" taken off it.
How does the head flow in comparison to a stock head, what was the cost of having the work done and do you feel the money spent was justified?

Did you do the work yourself? How was it done, must have been some sort of guidleline that was followed.

Looks good BTW