My contractor and I went to a local HVAC supply company. I overheard the owner on the phone telling his supplier that he is almost out of furnaces and needs to be resuppied asap. He then discussed the split system for my home with me, which will be a new system build. The home is 1600 sq ft in Pasadena CA (46 to 95 degrees avg). He recommended a 5 ton Bryant 359AAV060100 95% 100k (manufacturer page say this model is 120k) BTU single stage, gas furnace. The condenser is suggested to be a 4 ton Heil 16 SEER. He did say that this furnace will be a match for the condenser.
The home is well insulated and single story with good attic space. I need some confirmation (or not) that this system will not cycle too much. I worry that since he is short on product, he wants to sell what he has now. There will be 8 vents and one return throughout the house.