I have a 66 Ford with a stock 300 six cylinder. When the engine is hot and the pickup sits a while, it floods severely. It has a Carter YF that I have kitted, making sure the float level is correct. Once you get the engine 'de-flooded' it runs perfectly.

Is there supposed to be some sort of insulating spacer between the manifold and carb? And if so, where can I get one? I think the heat from the manifolds is boiling the gas out of the float bowl into the intake and floods the engine out.

Any other theories or suggestions?? I'm going to burn up a starter cranking this thing, plus shortening the life of my overhauled engine.

Thanks in advance for any help!

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1951 Chevy 1/2-ton Pickup truck