I'm sure this would work to atleast check the timing set...
RELATING VALVE OVERLAP TO THE TIMING TAG - WHAT IS A SPLIT OVERLAP?
Split overlap means that the intake and exhaust valves are split or open an equal distance at T.D.C. Overlap. Of course, this also means that the intake and exhaust tappets are split or equally off their cam's base circle at T.D.C. Overlap. The cam would be advanced if the intake tappet was open further at T.D.C., and retarded if the exhaust tappet was open further at T.D.C.
