On the distributor you can pull the cap and mark where the rotor is pointing on the housing where the cap sits, and also a mark on the distributor base to block.
This way you can drop it back in right where it was really easy.
Good luck getting the rear bolts out (or back in) without pulling the dist. out. Plus, it is so much easier to work on everything back there without the dist. in the way. But of course, to each his own.