[camarojoe]

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So, the 69 Yenko Deuce, which was a 350 right? Was that engine stock GM or Did Yenko "beef it up" ?
New territory for me!
Tks,
Rich

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The 70 Yenko Deuce had its LT-1 350 factory installed as part of the COPO package. The engine was essentially the same one installed in the Z/28. The factory rating was 360hp, but Yenko removed this rating from the air cleaner decal, leaving only the "350" portion remaining. While I believe most were sold unmodified, its quite possible that some received some tuning/modifications at Yenko. Marlin might have some further documentation on this.