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Old 08-17-2009   #19
flyin ryan
 
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Join Date: Aug 2006
Location: Edmonton, Alberta or Phoenix, Arizona
Posts: 2,736
Default Re: spark plugs for a full top end ported engine

Quote:
Originally Posted by rhipsher View Post
A $36 part causing the problem. It was the secondary vacum solenoid.
That was the problem on my 90 as well. Secondary Port Throttle Control Solenoid...the thing with the little filter on it, LOL. 'Think' the GM number is 1997222...don't quote me on it .
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