Since the guides were unfinished, and the seats weren't concentric to the guides, fitting the guides and recutting the seats would represent the absolute minimum work required to be able to run the heads.
Even though some ex seats had been replaced, the valve depth variation still wasnt great.
I got all the intake and exhaust seats on each head close to each other, but the two heads still had a variance of about .010-.015 between the two heads, which I planned on getting closer with milling later on.
After cutting the seats, the heads measured 92cc for one head, 94cc for the other.
These are going on a Mopar crate motor, and the part number for the service replacement head for those is 90cc, so no problem getting them into "spec" as far as chamber volume goes.
The cnc work on the intake port was fine. It got most of the big stuff out of the way, and left a little bit to work with and get into the final desired shape.
The exhaust however was not how I would have gone about it.
Way too much material removed from the short turn and floor, and too much left on the backside of the bowl.
I was pretty sure this lower ex port floor wasnt going to end up all that good...... But it is what it is.

Flow with as rec'd cnc work and seats cut, no additional porting-
4.375 bore, 28" test pressure, no tube on ex:

Lift------in/ex
.100---70.2/55.3
.200--133.6/112.7
.300--196.8/147.6
.400--248.7/165.1
.500--286.8/178.1
.550--293.5/183.0
.600--292.4/189.1
.650--291.7/192.7
.700--291.7/195.6