Cam timing would always be setup with crank at 0deg TDC, on any engine.
This is strictly about compression and firing order.
Spark timing is adjusted for TDC #1 compression stroke, for base spark timing BTDC
If you have a compression gauge test compression, 4.0l SOHC has 9.7:1 ratio so you should be above 170psi(all spark plugs removed to get faster crank speed)
Test at least 2 cylinders on both banks
Pictures here on cam timing: http://www.explorerforum.com/forums/...d.php?t=269671