Help with distributor indexing

I have a 2001 XJ and am installing a new 4.6 stroker. The shop removed the distributor (less) gear and threw it in a box. I have no clue how to index it correctly. Can someone explain how to install the distributorless gear?

Thanks!

well im no expert on that thing but i know you will want the engine tdc on #1. from there i would guess it would be just like the distributor model and you would drop it close to where it would be firing #1 if it had a cap. look to see if they marked the block anywhere to relate its position before removal. I just put my ignition from the 98 in the 2000 motor when swapped so i know you just need to get close and the computer will make all of your adjustments.