Out of curiosity if you buy a specific break in oil, how does that differ from a normal high zinc flat tappet formula in the additive package? Do break in oils just have even more zinc and phosphorous or is the package more in depth than that.
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1967 Firebird 462 580hp/590ftlbs
1962 Pontiac Catalina Safari Swapped in Turd of an Olds 455
Owner/Creator Catfish Motorsports
https://www.youtube.com/@CatfishMotorsports
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