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Manifolds- If they are not cracked and are cast iron, do not do ANYTHING but have them surfaced to fit flush with the block! Any automotive machine shop can do this. Iron that has been heated and cooled over a period of time is known as "seasoned" meaning the stress has been removed (kinda' like heat treating but, periodically over time"). They will last longer than new ones.
Carb.- Buy a rebuild kit at NAPA and a 1 gallon bucket of "Gunk" carb cleaner and do it yourself. Follow the instructions on the rebuild kit and it will run like new. Oscar
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