[earnhardt3]

Chris, thanks for the response.
No the Check Engine Light is not on. Would the OBD 'spit' out any codes by chance?
When the 'spider' assembly was replaced, the fuel supply and return lines were supposedly replaced.

You mentioned the Ign. coil, IAC valve, O2 sensor, EGR valve. If any of these had a problem, would the drivability only be affected at cold temp. or throughout the whole temperature range?

Sorry, for all the questions; I'm just trying to narrow this down.
Thanks.