[Kenth]

With a 230-236 HR Extreme energy on 110 LS cam and 1.6 rockers in a 389 using a stock 1971 2GC, you will have to adjust the idle circuit due to the lower than stock intake manifold vacuum signal from that cam, there is NO way around this.
Before this is done you´ll just chasing your tail.
Reduced pressure difference between atmosphere and intake manifold means less fuel into the combustion chamber and the already lean factory calibration in your 1971 carb needs help.
At minimum .038" idle tubes and .052" idle channel restrictions is needed.
Some, .057-.096" bypass air thru the center carb throttle blades is helping the blades in correct position avoiding nozzle drip, due to the hotter than std cam.
And regarding the choke, all engines not reached the normal driving temperature are cold, and cold engines needs additional fuel from the choke to run properly until it gets hot. The engineers knew this and put a choke on every carb from factory. This has nothing to do with the outside temperature, it´s the engines temperature that counts.
And, at least all 1964-66 Pontiac tripower end carbs have .030" holes in the throttle plates.

Hope this helps some.