Rocky, I've only seen the 330 hp 400 4-bbl listed for both auto and manual in the Pontiac Dealer/sales letters that are on GT-37.org. I've only seen the 345 hp number in discussions and always wondered where that came from too.
Sorry I couldn't shed official light on this for you, but maybe BVZ, OPH, or Ransom may know something.
Dennis
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