Carb heat shield . . . anyone try this?

I ran one of these when I had a Carter carb on my old 340, worked great:

http://www.jegs.com/i/Edelbrock/350/9266/10002/-1

The fuel would still boil out over night but it solve the embarrising no start issue when I would stop and get gas or get ready to leave a car show. It is specially made for the boil over problem that todays fuels cause.