If you're looking for the Brian Crower Spring and Retainer kit recommended for these cams, use kit # BC-0600 BC uses small diameter grinding wheels during the finishing phase when applicable to generate a more aggressive ramp rate for a faster cylinder fill rate. More air + more fuel = more power. Although it takes longer to grind the cams, research and development has proven that the inverted radius created by the small grinding wheel on the opening side delivers more horsepower on radius and roller rocker Compatible with: than the conventional, large diameter grinding wheels.
