[TR] Fuel percolation

[Randall]

> If you could
> get your hands on some flat brake lining material and have it riveted
> or bonded to the heat shield that might help.

Or even some of the felt and foil insulation sold for water heaters should
do, if you put it on the carb side of the metal shield.

A second layer of metal, spaced 1/4" - 1/2" away from the first can also
make a big difference.

My plan is to rig the radiator fan so it runs until the underhood
temperature drops.  But it helps noticeably to just run it for a minute or
so before shutting the engine down.

-- Randall