I may be late to the party, but...
Just make sure you get a d-dish piston to maintain quench. I put cheapo Keith Blacks in my truck 357 to get to 9.7 with good quench. For a 383 I'd think there have got to be lots of options.
I would put a catch can from the start, too. You know it's clean on a fresh build, why wait to see if it gets oily when you can just prevent it?
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