ring break in time

Just read this and yes, I took a Propane torch and waved it around that intake port gasket and nothing. Did a pressure test and no audible leaks above the other 3 cylinders. Still getting 120-130 psi compression out of that #3 hole within 10% of the other 3. Can't wobble the valves in new head as the valves seal is a polyloc thay i cant readily remove and would artificially support the valve in a crap guide. Carbed, common plenum up to the last 2 inches. Replaced plug, checked ohm/swapped wire, changed coil, cap has no wear visible on #3 contact, looks identical to the other 3, rotor is as new as cap <500 milea and they ran great until I put this newer head on. I pulled the guides out of the old head (that ran fine) and all 8 are perfect. No wobble, no wear, look like ther were replaced before I got this head as they are not OEM. All 8 will almost support the valve on the air pressure the tolerance creates if you plug the end with your finger. So I know the old head was good, it just didn't have the right port shape, not a deal breaker but I don't know of how long the Mickey mouse adapter plate I made out of aluminum will seal a square head port to a round manifold port. New head gasket, New rings....I have 4 new bronze intake guides on the way. Just seems crazy that this port won't frigging light off while.all the other will with the same readings on the compression tester and 2 new intake gaskets. Manifold not cracked, removed twice and checked each time. Power brakes work off #4 and even that one is hitting. Flummoxed! Will pull head again this Saturday, I hope #3 intake is wobbling......will advise