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I need new headers
Seeking help buying new headers. This is for my 1977K10 400cu.in. Cheyenne. I have been running Doug Thorley Tri-Y long tube headers for 20+/- years. They are now past their useful life. Living in CA the truck still has to pass smog every 2 years. The truck came equipped with the A.I.R...- StevesK10
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- Forum: Engine & Performance
