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68C15 · 12-25-2009, 08:40 AM

if you swap the heads look into a valve job on the 99 heads. they have problems with the guides binding to the valves causing unexplainable missfires.

12-25-2009, 08:40 AM	#7
68C15 blood type; Retumbo Join Date: Jan 2004 Location: next to my reloading bench Posts: 10,269	Re: 1999 motor options if you swap the heads look into a valve job on the 99 heads. they have problems with the guides binding to the valves causing unexplainable missfires.