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69GMCLonghorn · 10-21-2009, 12:50 PM

I'd bet my left... I mean, I'm pretty sure from what you've said that it's exhaust. I had a 307 with headers in my first truck and had 2 different (idiot) mechanics tell me I had a bad lifter. I finally could see the carbon build up around the header after a few days, replaced the gasket, and was done with it.

10-21-2009, 12:50 PM	#4
69GMCLonghorn Registered User Join Date: Dec 2006 Location: Porter Ranch, CA Posts: 978	Re: '69 GMC's got a tick. I'd bet my left... I mean, I'm pretty sure from what you've said that it's exhaust. I had a 307 with headers in my first truck and had 2 different (idiot) mechanics tell me I had a bad lifter. I finally could see the carbon build up around the header after a few days, replaced the gasket, and was done with it.