T-5 to flathead won't shift into gear with engine running.

[Init1]

My newly installed T-5 won't shift. Shifts fine with the engine not running.
Using 10" S-10 disc, stock ford throw out, New ford long arm pressure plate
Late flattie with hogs head and and 1" adaptor plate.
The disc is releasing.
Everything bolted up normally so I did not cut any off the end of the trans input shaft. Could that cause the problem? Anybody got an idea?