53 chev 5100 COE. I have the truck running and driving for the first time in 30 years and am having some cooling issues. I have replaced the radiator core, thermostat, cap and hoses. The engine runs fine but wants to spit water out the overflow hose. Not a bunch but enough that the fluid level goes down and the. Running temp goes up. Today I noticed that the radiator and top hose were warmer than the bottom hose but don't know for sure what that means. I have not replaced the water pump. Thanks.

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