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Old 05-28-2001, 02:50 PM   #4
thunderbolt
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Join Date: Oct 1998
Location: Houston, TX, USA
Posts: 380
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Holley's are notorious for being tempremental and not runing right out of the box. If it is too rich it should be putting a ton of carbon deposits in the tailpipes. Clean them out then drive it around and see if you are getting carbon buildup. (after checking that power valve) Your jet sizes may have to be reduced and accelerator pump shot reduced. Why did he replace the edelbrock just out of curisoity. They are rather well know to run pretty good out of the box and give decent proformance.
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