TB42 Carb Y60 GQ Coolant leak

Hello guys,
At the end of last year, I replaced all coolant pipes except the radiator hoses, and all heater hoses. So I first checked there to see where the leak was coming from.
I next moved on to tracing the leak, took of my exhaust manifold heat shield and intake piping as it seemed to be coming from there/that area.
Couldn't spot the source of the leak. Can someone give me any idea?

Hello, the heater core is part of the vehicle's heating system and can develop leaks over time. I think you should inspect the area around the heater core for any signs of coolant leakage or dampness.
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