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Message: <blockquote data-quote="1996mustangGT" data-source="post: 976249" data-attributes="member: 8710">So here is the combo I installed: GT40P heads, Crane Roller Rockers, Explorer Intake. Car has no EGR (No provisions on gt40p FRPP headers for tube), no smog, and no cats. I do have on of the 'egr resistors/simulators' so I'm /hoping/ that it has nothing to do with the egr. Initial timing is set at 12* advance and I'm running 93 octane.So here are the two issues I'm having....1) Every now and then, after idling in place for a bit, or stop and go traffic, the car is bogging out. Like its getting way to much fuel? and my favorite...2) After the car has been running and is warm, I can hop in, start it up...and it runs/pulls like a raped ape. Goes crazy. However after driving for a short period (less than 5 minutes) it wont pull as hard...i.e way down on power. Doesnt stumble, just doesnt get up and go.Any ideas? I am throwing a CEL, but its totally intermitten. It comes and goes, normally while driving. So Im having a hell of a time trying to read it.</blockquote>