Personally, I could align hone that block and make it quite a bit better. I don't have the capability to line bore the front and rear cap. I only have a line boring attachment for my Sunnen line hone. It sets up on the rear main and can only bore the center 3. If it was in my shop, I would cut all the caps .003 and line hone the 5 bores +-.0001 and +- .0001 for taper. IMO, your parting line oversize is not an issue. The situation you have now is really this: Will the block work as is? Yes IMO. Is it "blueprint quality"? No. You have put allot of time,effort and money into properly installing billet splayed caps. Now IMO, you need a race shop capable of finishing the job with the same care and attention to detail you have put in yourself. You need a race shop that cares about getting it "to specs.", not just hitting a tolerance range. Hopefully, someone can recommend a shop that cares about getting it more than just "good enough for an old Pontiac". That's the issue you often run into.
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