[john walker's workshop]

I do it different than most. Lay the heads in line, swab sealer on the cam tower, install on the three heads and torque the nuts, install cam, install rockers, turning the cam lobes away as needed, torque the shafts, turn cam keyway to 12 o'clock and install on engine which is in TDC position #1. Saves lots of time. Someone will surely say the the cam might be binding and you'll never know. Worked for me 40 years, YMMV.