Ford Timing Set Installation Instructions

Ford Timing Set Installation Instructions, If you are using a timing set with three keyways, select the appropriate keyway for your camshaft timing specifications. COMP Cams ® recommends the standard timing position for most applications. This position uses the round or “O” timing and keyway marks. Standard Timing Location: This is the
same as original O.E.M. setting. Use keyway and crankshaft gear tooth marked “O”.

http://www.compcams.com/Technical/Instructions/Files/179.pdf