  1968 TO 1981 Z50'S 1980 TO 1981 C70 PASSPORTS ALL CL/SL/XL 70'S CT70 FROM 1969 TO 1981 ALL ATC AND TRX 70'S YOU MAY WANT TO USE THE HD VALVE SPRINGS (NOT A MUST BUT NOT A BAD IDEA) _______________________________________________________________ Overlap of 10.00 degrees and has in Intake Duration of 215.00 degrees. The Exhaust Duration is 225.00 degrees. The Inlet Cam has an Installed Centerline of 102.50 degrees ATDC. The exhaust cam has an Installed Centerline of 107.50 degrees BTDC. |