what he was talking about is running a bigger pipe to the stock airbox, he wants to keep his heated intake air because being from the same town he's from,you need that heated air in the ohio winter. a lot of people don't realize that's it's not just for cold climates, when air goes through a venturi on a carb it increases in velocity,but it gives up heat in the process. the average temp drop is about 30 degrees. so if you subtract 30 degrees from the outside air,it doesn't take much to run into problems with carb icing. it's also based on humidity the more humidity in the air, the more likely you'll run into that problem. our carbs come with three systems to prevent this,the hot air system,the heated carb plate under the carb,and the fact that coolant flows through the carb,actually four, the heated manifold. i'm working on a system with my cold air intake to be able to apply carb heat when i want,just like an aircraft. when it's cool and humid it will be on.hot and dry it's off. the reason you want a cold air intake isj't primarily temp, but air density. hot air is less dense so there is less of it that can be pulled into the cyls. cool air is more dense and more of it can get into the cyl. they should call them air density intakes,it's more accurate. oh, when i took offf my fender there is an intake restrictor under the fender,it's got a big pipe and a ltlle tiny opening for the air to go through.
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