Posted by Tom Fleming on February 06, 2011 at 06:24:13 from (67.20.243.240):
In Reply to: 300 Misfire when Cold posted by Lee Jr. on February 05, 2011 at 16:19:20:
I agree with CNKS and Cowman. These old girls are cold blooded, even in the summer. If you can lay your hand on the top of the intake where it meets the main manifold, you are NOT up to operating temp.
start with choke, then back choke off a little, run for at least 5 mins, then back out some more. run another 5-10 mins, and she is ready to start working. so, that is at least 5 mins of warm up in the summer and 15 in the winter (if not more).
If the intake isn't warmed up, they will cough and sputter without the choke.
PS. icing at the outside of the top of the carb in ANY weather is normal. I am talking about the manifold area where the intake meets the exhaust.
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