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Chuck,
Are the smog threaded holes ORIGINAL, or newly drilled, in these "Take Off" OEM exhaust manifolds ???? Were not some of the 178/879 castings undrilled and used in NON-Smog applications ???
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Chuck Sharin [email protected] Auburn,WA (30 miles South of Seattle) 70 Camaro R/S Z-28, L-78, R/S SS 69 Camaro COPO "recreation" |