Help needed MSD Setup
Well hopefully the drive key on the bottom of the distributor shaft is not damaged.
Remove the plugs so you can roll the engine by hand, put #1 piston at TDC on the compression stroke, both intake and exhaust valves will be closed, your index mark on the balancer should be at or close to 0 on the timing tab.
Install the distributor. Check to see that the rotor is aligned to fire to #1 on the cap. It should be close enough to start.