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Labor Day Putting down your wrenches or time for
MORE wrenching? 
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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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#62480 07/03/2006 3:53 AM | Joined: Apr 2006 Posts: 53 Member | | Member Joined: Apr 2006 Posts: 53 | What I understand is the heat riser aids in the warming up of the engine during cold mornings along the carb preheater tube and thermal vacume valve on the air cleaner. I live in Southern Calif and I dont need it. I disconected mine without any problems. I don't know how cold it gets in Mississippi but you can live without it. | | |
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