I run a supercharged Cossie YB in a Dax Rush in hillclimbs. The charger is a large Whipple Lysholm screw type. The low range torque is massive, but there's not a lot at the top end. I'm running the standard turbo cams, which are obviously far from ideal. I'd welcome advice on resetting the valve timing, either via vernier adjusters or by using different cams. Any ideas?