If you're set on this, then look for a '79-'80 Buick or Olds in a wrecking yard and get a 231/3.8L Buick V-6 with all the attached accessories and you'll have a far more powerfull engine than the 225. The 231 evolved from the 225 and in '79 they improved the heads to gain 43% more inlet port air flow than '78 and earlier models acording to Buick. In '81 they went to computerized carbs and distributors.
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