Fuel pump Questions for Dany's Magnum swap.

I have used a couple of those Hughes adapters. One has been on my brothers car with a Mopar Performance camshaft for around ten years now with lots of street miles. I forget which fuel pump we put on it, and I forget the cam specs.
I filed the key and adapter until everything fit snug, then during final assembly I used red loctite on the cam bolt threads. Never came loose.
Stock 5/16 fuel line.