[scotricker]

I rebuilt the small block chevy not too long ago to put in my truck. Pistons, rings, bearings, cam, valves, ignition, and a quadrajet rebuilt by Cliff.
Ever since it has gotten cold, it feels and sounds like a mis-fire until it warms up all the way. I pulled the plugs and they're OK, if a little rich, but still ok. At cold start-up I can hear a mis-fire out of time bang,clank, in the passenger side long tube header, but then after it warms up, it goes away and sounds fine. Any ideas where what to check? I'm thinking maybe ignition wires need to be sorted a little less tangled? It's only on that one side.