Heating with the exhaust is the best I have found. They heat together & stay about the same temp when running. The top of the intake is cooler as heat rises but inside the
fuel mixture will faporize better when hot than cold.
When headers are used this all goes away & water heat is not enough, especially in the colder climates. The 6cyl. Vette. heated the same as the 'stock' single carb engines.
When cold you had to choke all three carbs to fire it up.
There was an adapter that used steel pipes
or hoses that went from the headers to the lower portion of the intake etc. It wasn't popular as they leaked & 'stunk' up the car.
Twin carb set ups were always hard to keep in adjustment too. Eventually most went to 3 pot set ups with headers and the heat tubes dissapered as gas was 30 cents a gallon and
no one cared about economy at that (1950s)
time.
If you are in Texas & the weather is warm wait till it gets hot before you "jump on it"
(the engine that is). Forget the water hoses
that they can break & leave you stranded and
don't help except in BAD weather.
Good luck, JM #3370
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