Vehicle running warm 360 la
Two things come to mind here, one of which @Dana67Dart mentioned: Did you get the system fully bled after the AC was installed? Lack of hot air at the dash hints at an air pocket in the system at/near the heater core.
You've also added a condenser in front of the radiator. That's going to obstruct airflow through the radiator, lessening the efficiency of your fans. Atop that, when hot weather arrives, the air you're pulling through the radiator will be preheated by the condenser. I'm guessing the AC system came with a relay to run the fans whenever the AC is used; it's there for a reason.
One more thing I rarely see mentioned: The thermostat itself. This is a factory air-cleaner decal from a '70s CB300:
It was made by Robertshaw for Chrysler. The design of the stat was so important ("WILL" rather than "MAY" CAUSE OVERHEATING) they included a drawing of what it should look like. It's no longer available new anywhere; NOS is the only option. Sounds terrible, but several other vendors sold the Robertshaw unit under their own names and part numbers (Purolator, Atlas, even CarQeest at one point) so they're still out there. Cross-references are only good if the stat looks like the diagram above.
Does it make a difference? With dramatically increased flow, it certainly should. My '69 Valiant has a 10.x:1 340 w/painted headers, a shroudless thermal 5-blade clutch fan and a cheap 22" Chinesium/aluminum radiator. The VDO mechanical gauge stays at 180° like the needle's welded in place with ambient temps above well over 90°. The factory dash gauge is similarly steady (both gauges work simultaneously) and I've verified with an IR heat gun. I can't swear it's the 'stat, but when the ambient air is 98°, the car's motionless and running, and the needle stays planted like that, I'm not trying something else.
Two things come to mind here, one of which @Dana67Dart mentioned: Did you get the system fully bled after the AC was installed? Lack of hot air at the dash hints at an air pocket in the system at/near the heater core.
You've also added a condenser in front of the radiator. That's going to obstruct airflow through the radiator, lessening the efficiency of your fans. Atop that, when hot weather arrives, the air you're pulling through the radiator will be preheated by the condenser. I'm guessing the AC system came with a relay to run the fans whenever the AC is used; it's there for a reason.
One more thing I rarely see mentioned: The thermostat itself. This is a factory air-cleaner decal from a '70s CB300:
It was made by Robertshaw for Chrysler. The design of the stat was so important ("WILL" rather than "MAY" CAUSE OVERHEATING) they included a drawing of what it should look like. It's no longer available new anywhere; NOS is the only option. Sounds terrible, but several other vendors sold the Robertshaw unit under their own names and part numbers (Purolator, Atlas, even CarQeest at one point) so they're still out there. Cross-references are only good if the stat looks like the diagram above.
Does it make a difference? With dramatically increased flow, it certainly should. My '69 Valiant has a 10.x:1 340 w/painted headers, a shroudless thermal 5-blade clutch fan and a cheap 22" Chinesium/aluminum radiator. The VDO mechanical gauge stays at 180° like the needle's welded in place with ambient temps above well over 90°. The factory dash gauge is similarly steady (both gauges work simultaneously) and I've verified with an IR heat gun. I can't swear it's the 'stat, but when the ambient air is 98°, the car's motionless and running, and the needle stays planted like that, I'm not trying something else.
