pin time the engine (plunger under the injection pump facing forward)
remove the timing nut on the injection pump (15/16 nut on the side of pump)
have a buddy rotate the engine while you put light pressure on the engine pin. when it clicks in your at TDC. take a mirror and look inside the inspection hole on the
IP you should see a shinny metal tab. the back side of the nut you removed has the female side of the tab on it. it should slide in and out easily. this insures the engine is pin timed ant whatever the pump has been modified to or whatever the metal plate on the side of the timing case says its set at.