I had the dist. out of my 390 when I pulled the intake off. When I put the dist. back in it would not fall all the way into position. I fought with that stupid thing for hours.
I put in a couple days a week at the wreckers here. The fellow that owns it walks over to see what's happening.
To make a long story short he puts a couple fingers one the top of the dist cap and says hit the key a couple times. Boom fell right into place.