273 cam selection on Desktop Dyno

RedFish said

Fast burn the same as lean burn or found in those with the lean burn ignition ?
Where would I look for identifying marks on those heads ?
You said milled to 59 cc , so what was it before or about what in thousandths was remeoved ?
Will the stock 273 single plane 4v intake port to match to them fairly close ?
Too many questions ?
:)

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I'm pretty sure the lean burn computer engines went away before the fast burn heads came out. I know my buddies 78 Fury that had a 318 lean burn didn't have 302 heads cause I took them off to replace leaking head gaskets. They were just like all 70's open chamber 318 heads.

What year intake do you have? Remember the older 273's had a different bolt angle than newer LA's. Think it was 66 on back that had the odd angle.