Look on the back side of the cam you will see 2 marks across from eachother there is a dot above one of the cam bolts on the front if that is up your cam lobes are down but you allign the 2 marks with the edg of the head where the front cam bearing rest allign there on the bottom end allign the line above the "T" on the flywheel with the notch in the side cover. there is a plug about the size of a nickle or quarter you remove to see these marks. if you see the "F" it will be about a half inch after that mark. its best to jack up the rear and put it in like 3 or 4th and bump the wheels over by hand then have someone hold it in place while you release the timing chain tensioner. come back if ou have any more questions. the valves adjust at .004 intake and exhaust too by the way.