Check out huntertuneds older red b20v hatch videos. Center 2 cylinders crack sleeves zosh has been down the same road. Like sammit says keep it around 10Psi so you can keep it around for awhile. I love the b20s but the sleeve walls are alot thinner than b18, b16. The head and cams doesnt flow as well up top as the vtec. K series crx mate!