I've been running the PowerWorks kit on my ST170 for a while with great success. I'm now needing to rebuild the engine. My goal is 250-300 whp with bulletproof reliability. I'll be fitting an overdrive crank pulley for more boost. I'll probably use a basic pistons/rods set up. I'm also interested in upgrading my valvetrain with cams and valve springs etc. Can anyone suggest cams to go with a supercharger? Should I keep the VVT? Any advice would be greatly appreciated!