A few days ago I picked up a 389 pontiac engine. An older guy in the neighborhood who used to be a car guy but is now in his 70's cleaned out his garage and told me this 389 was rebuilt about 12 years ago. He sold it to me for 50 bucks. He said he does not remember who built it. The engine was on a stand and is painted the correct pontiac color and I can see it has new freeze plugs. Other than that I cannot confirm if the internals are fresh. The engine build date next to dist is july 30 1965, the intake number is 9782896 which is 1966 389 CI with a single carter 4bbl and the heads are number 76 which are 1965 421 heads. I would like to get the engine running but want comments from any engine guys as to the steps to follow to make sure the engine was rebuilt properly before starting it. I plan on removing the valve covers and oil pan to see if it appears new but what should be done beyond that ? I am not concerned with the carb or dist or spark plugs but the mechanical issues like cam, lifters, rings and bearings. Short of tearing it down would like suggestions from anyone who has been in this position. Thanks for any comments.