Talk to BTR , Brian Tooley Racing in Bardstown, Ky.. I put one of their camshafts in a 5.3 LS engine and so far no issues. Pretty sure they are grinding their own camshafts. Not sure if they’re into BB Chevy stuff.
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Richard
1967 Camaro SS 396/375 4K
2002 Camaro 35 Anniversay Z4C-WU8
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