Check to make sure the exhaust crossover, butterfly on passenger exhaust pipe is working correctly and timed right. If it is stuck in the closed position, this will cook the carb as gases are passing through the intake.
When cold, the weight will be at a right angle to the exhaust flange. As the engine heats up, the spring will expand (UNWRAP), and the weight will drop to the ground, thus, opening the butterfly and letting the gas exhaust out the pipe.
Next, I'd check initial timing in accordance with spec, 6-10* BTDC and check the mixture screws with a vacuum gauge monitoring manifold vacuum. Adjust for max reading. Reset curb idle as needed.
Make sure secondary throttle plates open and close as designed.
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CUBS - 2016 World Series Champions - maybe this year, 2019 ...