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Reply to "what's going on here?"

the key slot location on the stock gear is unique, stock replacement sets may not have the same orientation as the pre-smog retarded cam timing crank sprocket. that little bit of wear is nothing compared to the difference retarded timing will make. you can't get that gear anywhere anymore noway nohow

Scott at Parkland Performance Auto Machine ( http://reincarnation-automotive.com/ ) suggested an outfit in St Louis MO but MN would be a little closer to you. the fixture is called the BHJ Lifter Tru, not a lot of shops have the tooling. check out this vid where Tim shows the factory machining error with a light kiss of the cutter in the lifter bores https://www.youtube.com/watch?v=BqoHPKGghO0

there's also the Wydendorf lifter bore reamer kit shown in this vid, https://www.youtube.com/watch?v=fxekDALMHME which has been criticized for reamer speed etc but i can tell you it's not for the faint of heart (literally) to do yourself. it's hard work!

good luck but i'm not sure you're going to find another shop with the BHJ fixture and the correct plates for 351C because Windsor lifters are on a different angle
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