Update on progress so far:
Carb settings do not take much movement to make a difference. The LO side screw was easy to get set but still working on HI side screw. From what I can found out starting point is 2 turns out and it should not take more than 1/4 turn in or out from there. At 2 turns out the CHT is running about 300 and EGT at 800 at full power. At 1-7/8 turn out CHT is 350 and EGT is 900. The CHT seems to respond to changes more than the EGT. I have tried a total of 3 different locations for EGT and have moved both CHT and EGT to lower right cylinder, reads same as the top cylinder. I still have some tuning to do but it is doing good. In level flight without at same altitude at WOT i am seeing 2,400 RPM. Climb is consistently better than the 1/2 VW. When we get the starter and ring gear removed, once we figure out how to start the 3 cylinder radial by hand proping, we should be about 3 lbs. lighter than the 1/2 VW.
Vibration and sound at idle is good, there is a range between about 900 and 1300 the engine likes to shake. Above this range it again smooths out and does good. Flying behind the radial brings new vibrations and sounds i need to get used to. When the head set is removed in flight the engine sounds like it is just loafing along, more prop and wind noise than engine noise.