Hector, see David B's explanation of this.

John

On 7/31/2012 4:26 AM, Hector Zapata wrote:
> On 7/30/12, JRodgers <jrodgers113@gmail.com> wrote:
>> These carbs don't have carb air heaters, and are subject to icing when
>> conditions are right. Makes operation in nasty weather that much more
>> miserable.
>>
>> John
>
> I thought that was considered good for the mixture. Thirty-something
> years ago I met a mechanic who was very proud of the way he adjusted
> carburators, they frosted at idle, 80� weather...
>