You have a vacuum leak. Hand trace all the vacuum lines and make sure the air breather is secure to the carb or throttle body.
Had same problem with 1998 ford contour gl. Replaced transmission range sensor and problem stopped.
It's on the verge of vapor lock.
Todays car warms up faster if you drive it. Just drive easy
It warms air and water, providing the power to drive weather.
EGR Valve
sounds like a loose or worn belt.
The land warms faster
The sun warms the earth.
Sounds to me like a cracked cylinder head.
soil warms faster than water.
probably over the winter, but not once it warms up
I would replace the control module within the distributor ( $ 25.00) It is not hard to do. This module is a microprocessor and as they age they are sensitive to heat. As you drive your car it warms up and shuts off.