Timing chain is just a couple weeks old, seems to be doing fine. Only thing I could think of myself is a my distributor. When I ordered it in and installed it it didn’t work so I rebuilt it at home and it’s seemed to do okay. Wondering if something went wrong when I rebuilt it
Where is your initial timing set? If it is not advanced enough after it was reinstalled from the rebuild, that certainly could make it stall when dropped into gear.