Can anybody solve this hot start issue? I'm out of ideas!

I figured it would be the other way around (intake is cooler than the block) till ya shut it off anyway. (Especially with a blocked off crossover)
I didn't think that would work because of the heat soak when not circulating coolant would be about the same, seems like to me.
The problem is not when running, but after shutdown and heat soak.

Putting air through that might work better now that I think about it though.



One thing I've been wanting to try is a water heated carb spacer, like Ferds used to use, like this:



The coolant SHOULD be cooler than the intake, unless possibly you are running an air gap. I bought a couple off ebay, one of which seems to be completely plugged!!! And "they" require a little work because of the construction underneath, IE sealing problems. So I have not yet got one "on there."