10-13-2008, 04:32 PM
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CC Member
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Join Date: Oct 2003
Location: Saratoga Springs,
UT
Cobra Make, Engine: Shell Valley, 418W, tremec 3550tko, 9" ford rear, 3.0 gear, silver/black
Posts: 408
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Not Ranked
Rick,
Problem started when cruising in Oregon in August! Gradually got a little more pronounced as time went on! Where fuel was purchased did not seem to make a difference.
Sidepipes are not black
Sparkplugs look a little lean (white)
Fuel Pressure is at 5.5 lbs
The problem was when cruising and VERY slowly rolling into the throttle. If you push on the go pedal quickly - no issues!
What is different is it seems down on power after advancing the timing, but the stumble went away!!
Weather permitting I will back off the timing and as Warren suggested richen up the idle circuit a tad to see if that helps. I also will install new spark plugs and report back!!
__________________
Terry
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