Are there any other possibilities? I sealed any little holes in the exhaust that I could. I guess my question should be, is it possible that it might be a vacuum leak and how do I check so I can rule it out at least?
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67 GMC Short Step
350/4-Speed/3.08 Posi
Front/Rear Sway Bars
Kelowna BC, Canada
Member of DTPW
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