I'm sorry, but why? If you have the marks properly aligned on the two cams and the crank, you're good. Rotate the engine a couple of times to make sure it's aligned correctly and the job is done.
The easiest way is to shift into 5th gear and put a friend inside a car to hold brake pedal pushed.came up with a simple solution of breaking the cam bolt loose (2x6x48") [three holes drilled and shoot no problem]