Camshaft specs 13,03 IN/ 12,6 EX mm max lift 308 IN/ 298 EX duration 277 IN/ 266 EX duration 1mm cam timing in bdp 5,28mm @ 103° IN/ 4,17mm @ 106° EX. Valve springs required. For mechanical followers 0,2mm intake 0,25mm exhaust. Maximum profile for Race & Drag race for Standard Tappet Diameter