Here's a little more on the CJ, we went with a head that was done in a couple steps, even could be considered backwards, but we had to play what we were dealt
These are C8OE-N CJ castings, we had them initially done by one guy that misinterpreted what the owner wanted and elected not to do any porting. In his defense, he did a very nice job on machine work and a good valve job, bowl blend, and 2.15/1.70 11/32 valves. However, the heads didn't pull the numbers we needed. Of course flow isn't everything, but this is a factory 4.30 gear car, already undercammed as a stock CJ and we added 30+ cubes.
So we gave Lance Smith a try, he runs Craft Racing since Keith sold off and he does CnC programs for iron heads, only one I know of. He was able to match all the chambers, unshroud the valves, and work the port to flow over 300 cfm. You'll see a cut to the floor, but it's misleading, he didn't change the entry significantly, but did work the short side and the roof. I cc'd the intake ports and chambers and came up with 158-160, so not a lot of cutting, and a big 83 cc chamber, which makes sense with the unshrouding and valves.
Some pics below:
You can see how he dipped into the quench pad and opened up around the spark plug. I hate giving up quench surface, and don't love a big chamber, but given it will be .041 quench with a flat top, and we are watching compression and cam choice, it should work well.
The exhaust port came out nice, Just a note, the exhaust gasket surface is not this ugly in person, the camera makes it look rusty, it's in decent shape
The intake port will likely work well too, although I was surprised to see a small cut on the bottom. Also, those dirty areas are areas the CNC did not cut. I probably will hit them with a little wire brush to make them look the same color, but they aren't doing anything and are not even really noticeable below the CnC surface by touch other than being a different texture
We also cut for beehives, and used 11/32 valves although not certain if I will go standard springs with Ti retainers, or beehives, they are cut for spring cups and .531 seals now