GMC 302 has trouble starting after it's hot and then turned off. The starter turns the engine for a few fast turns and then disengages.
Usually it takes 4 to 8 tries to get it running.
The GMC engine starts almost instantly when the car has been sitting for days. I pump the gas once and choke it slightly.
The intake system consists of 3 recently rebuilt Weber 32/36 carbs on a home made intake. The center carb has a manual choke. The ignition is HEI with initial mechanical advance set at 10 degrees.
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