Install the Woodruff key into the hub of the cam thrust bearing assembly. To get the key seated evenly against the bottom of the slot, you may need to use a small punch or a brass drift and a small hammer.
Install the belt and camshaft pulley. Set the camshaft pulley on top of the crankshaft pulley with the belt around both. Make sure the timing marks (they have been marked with white in this photo) are aligned so that the mark on the crank pulley is centered between the two marks on the camshaft pulley. You may need to turn the camshaft so that the key will align with the keyway in the camshaft pulley so that it can slide into position over the camshaft thrust bearing assembly.
CV uses an ARP bolt with left-hand threads to secure the camshaft pulley to the camshaft thrust bearing assembly. Torque it to 70 lb-ft. You'll need to lock the crank down at the same time.
You can check your camshaft timing as you normally would with a timing chain set. Just make sure that the timing marks on the adjustable pulley are centered over the "0" before beginning.
Test-fit the timing cover. Drill out the holes where the bolts are already in place in the back cover so that the holes in the timing cover will fit over the bolts. Don't forget to chamfer the edges so you won't have any sealing problems.
Now you can secure the front cover with the remaining bolts. This photo shows that some holes have been drilled to clear the bolts holding on the back plate. We've left a couple of holes open on the right side of the cover to bolt a timing pointer to the engine at a later point in the assembly.