Pilot bushing direction
Not mentioned here at all but IF you use the bronze bushing- pre soak in oil for 24 hrs. Helps install and input shaft lube.
I was taught that many many years ago when these were new. Never checked to see if it was a FSM thing or just a concoction by a back woods hill billy. I just know it helps all the way around. Good luck. My 66’ 273 was a steel crank auto car 4bbl motor. It had the proper sized for a bushing but we had it cut for the newer style 904 nub.