I was having problems with vapor lock as a result of gasoline boiling in my carb bowls. Reduced the heat transfer from the intake manifold to the carb by replacing the aluminum spacer with a wooden one. No more vapor problems. I'm posting photos of how I made the spacer. After the spacer was made I coated the barrels with epoxy to prevent gasoline absorbsion int the wood. I then painted it with engine enamel. Not sure how to post pictures. looks like I'll have to use 2 posts.
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