New engine is 9.0:1. Any ideas on fuel tuning? I understand that I'll need to boost lower than I'm used to, but with a higher static c/r will I need to set up the low throttle settings to be richer on the afc?

Set-up: 9:1 bottom end
14b
450s
S-AFC2
Walbro 255

You'll either have to run richer or run less timing. Its up to you which direction you want to go. Myself I'd run a bit leaner with less timing. It seems to be working well for me so far.