Otto, please don't rattle Jerry's chains.

I can see your point about vapor lock.
There should be a thick insulator below the carburetor.
If this is not good enough I would install a heat shield.
I've seen one on an Oldsmobile flat 6.
Another solution is to install an electric fuel pump.
Please open another topic if you wish more discussion.


"Adding CFM to a truck will only help at engine speeds you don't want to use."
"I found there was nothing to gain beyond 400 CFM."