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73-87 Chevy _ GMC Trucks => Performance => Topic started by: BIG CHEVY on October 11, 2011, 09:59:32 pm
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This answer should be quick and simple.....sorry for askin but i dont know.
I put headers on my 350 motor. It used to take a minute to warm up but did ok under normal circumstances and could choke it. Even though the new headers have really woke it up....its like trying to warm up impossibility. Pulling the choke immediately kills it. Sometimes i even have to keep it crunk by pedaling the throttle. When its warm its perfect. What exactly changed to make it like this and what are my remedies? Thanks in advance guys...
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This happens to me on my 74 whenever it is cold, I have a manual choke, at first I have to pull it about 3/4 out on a cold morning, but as soon as it starts I have to go to about 1/4 choke, if not it dies every time. I have tried and tried to see if I could adjust or play with the carb. but no matter what, that is how mine works, and I have headers also.
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When I put headers on mine there was no heat stove provision on the headers for sending warm air to the carb. I had to install an aftermarket heat stove to the headers to send warm air to the carb. Made for quicker warmups. That was many years ago so I don't remember the manufacturer of the heat stove. You can probably fab up a simple, homemade heat stove. Mine is essentially a little metal box clamped to one of the header tubes w/ an outlet of ~1.25 " in diameter to match the inlet on the air cleaner ass'y. Connect the two w/ flexible tubing readily available at parts houses.
Rusty