Hot engine hard to re-start Vapor Lock???

[bobcowan]

What do you mean by, "Hard to start"? If the engine turns over like it usully does but won't fire, then it probably is hot fuel. Use a infrared thermometer on the carb bowl and see what you get.

But if it's slow to turn over, then it's probably an electrical issue. Like a hot starter or battery cables that are too small.

For a hot fuel issue, there's a couple of fairly simple answers. For the carb, I would use a heat shield like this one Holley 108-70 - Holley Carburetor Heat Shield - Overview - SummitRacing.com I would start without a phenolic spacer and see how it goes. If it was still too hot I would add a phenolic spacer.

There are a number of heat shields available for the fuel line. Inexpensive and easy to apply.

If it's really bad, consider adding a return line.