Rebuilding Original Engine 383-s Fastback

I have not finalized the piston choice yet, but the KBs is what my machinist has had good results with. Will be using stock 906 heads. My 440 has flat top TRWs and 452 heads. Based on my measurements, it is at 9.3-1 compression.

Didn't stock 69 383's have flat tops and around 10-1 compression with 906 heads?