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Old 05-23-2016, 10:25 PM
carpoor carpoor is offline
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Join Date: Dec 2011
Location: Floriduh
Posts: 2,404
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They really don't per se` "wear out." I prefer OEM parts over a lot of Chinese aftermarket junk. My guess is that it isn't phased properly. It might be a tooth or two off. Bring #1 to TDC, clock the rotor so that points to the #1 intake runner. I do all of mine like that, they start up and run well every time.
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1972 SS 454 Chevelle LS5/M21/12 bolt 3.73 posi
1969 Malibu COPO L72/M20/12 bolt 3.31 posi
1968 Malibu LQ9/4L80E/12 bolt 3.73 posi
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