[TR] TR3A cooling, more

[Randall]

> I now have to figure out why I get no vacuum reading on the gauge.

The vacuum advance port is designed not to have vacuum at idle.

If you open the throttle suddenly, there is also very little vacuum; and if
you open it slowly, the engine over revs.

The solution is to either rig the vacuum gauge so you can see it while you
drive; or not worry about it and trust that it works.

Randall