Carb cooling fan, do I need it?

[Wherlwind]

my smogged motor barely starts without it and will die within 100 feet and be hard to start again if driven within 40 minutes of stopping. wire it to a toggle switch if you have to.

I ran about 300 miles back home without it on a hot day and it would start every time . I had to have the gas pedal right to the floor to start it but that could be because of carb /choke problems I am trying to sort out. I have the fan hooked up again now and will keep it working at least until I desmog it. I still have a small exhaust leak at the rear of the manifold that I will have to deal with later.