Golden Jubilee
Posts: 5171
Joined: Thu Nov 29, 2012 9:28 pm
Location: Lyman, IA
Re: Sheet Metal Tube Under Carb??
The only explanation that make sense is it was to direct the mixture to the "hot spot" under the carb, or to conduct some of the heat from the hot spot to the base of the carb.
Whatever the reason, it doesn't seamed to be successful enough to be common. Rusting would put metal in the intake stream which isn't good.