Car running poorly when cold

Thought I would add my two cents worth...I'm not sure where you live, however as stated temp change and dampness can be a big problem for some. I had three different vehicles and they "all" had problems like you stated (mostly late fall until early spring). The majority of cars on the road have heat risers off the exhaust to worm the air going into the carb.

When "I" changed out my vehicles engines to headers and a "open" face air filter as K&N. The air flow was now no longer heated and thus going through the carb vanturi which caused the mixture screws to freeze (Iceing). In turn, the engine would not idle correctly and stall out. NOT thinking...being a Canadian..dah...I was wondering how other guys got away with such a problem :scratch: and contacted a speed shop in San-Deigo California. They never heard of such a problem..(they were all completely lost) :shaking2: . Understandable, never gets cold enough down there to have a iceing problem.

All I do now on colder/damper days is to flash the engine and wait until it stalls (2-3 min during iceing). Wait another 2 min until the slightly heated block worms up the carb area, then re-flash and go without any more problems.

PS - Confirm if iceing is your problem by flashing the motor to see if your mixture screws turn white (frost). PSS-I was also "told" that a guy can now buy a carb adapter plate that has a relayed electrical coil that heats up the air flow into the carb for the first 5 min when starting?