Wossner = 8:1CR
JE = 8.5:1CR
Accralite = 9:1CR
If you're keeping it stockish and supercharged, or using a massive turbo and lots of boost, leave it 8:1. Highly modded and supercharged, possibly 8.5:1. If you're going K03 turbo use 9:1 - though I'd consider 8.5:1 if you're keeping the stock head.