Here we go again

OK, first, I missed the second page of replies! Quite the pictures of castings close up!!! So if any of my comments are "outdated" my bad. I can see that there are definitely "some" impediments to flow, that need to go! S

Looks like a set of "you finish" heads..... With no valves, I'd bet $.03 that the intent was for the new owner to finish as needed.
Plunge cuts in the intakes/exhausts look like simply remove the sharp edges from surfacing, and provide a slight "porting" of the ports.

I took a HP engine building class at a JC near here and learned a lot about porting and such and how to do it wrong! Typically the experts were saying that unless you were spinning the moon, porting the entire passage of a port didn't really buy you anything except for making a port that will condense fuel mixture on the walls of the ports! "Leave the bumpy texture" to provide some turbulence to keep the fuel off the walls. If you are port matching, you really only need to go into the port no more than about a half inch!

The other BIG thing about porting below the valve seats was to be careful...... SOMETIMES, that recess under the seat is providing for better flow due to the venturi effect than if you were to cut it all away and smooth it all down........ BUT, you'd need to experiment with the ports and a flow bench to figure out the characteristics of your particular head.

That said, can Edelbrock provide any flow characteristics for these castings????? Any one else?

I can see where cutting the valve guide protrusion into the ports could help a little.....but again, flow bench testing here will tell the tale. Flow results as cast or delivered, would certainly help to know if you "need" to do any more to provide more air at your proposed operational RPM range!

Big pictures always show more boogers...... just don't slide these around on your old metal work bench with all of last weeks project still embedded in the surface......! :)

Be sure to post some assembly pic's when you start putting it all together! I'd like to see the piston/rods how they will come together with all! Great project!!!

Cheers!
Steve