What head gasket did you use Soul?
I'm using 5.3 heads and a .40 gasket for 10.9:1 on mine, also using a slightly larger cam too. I'm shooting for 450hp to the wheels, but it will be carbed so it should make things a lil easier.

224/236 .612/.609 117+2
For the OP- the cam specs will differ depending on the intake used. The lift on the L92 heads will also be lower for clearance reasons because of the large valves.