When you get your JE's, check the CR - when I measured mine during rebuild, the actual CR was 13+:1, rather than the 11:1 it said on the box. Machined the crowns down to give (measured) 11.2:1. Initially retarded ignition by 2 deg, but after a day on the dyno, am back to standard settings (although now accurate, as timing marks on flywheel were out), with no pinking at all on pump gas.
Did you verify the CR with a compression test? I'm wondering what kind of pressure you got with 11: 1 vs. the oem 9.2:1.