Roller lifter pre-load on a Windsor?

[mdross1]

Have always run my motors to near valve float and a few times nosed it over.A long time ago was taught to adjust them till they no longer tick in most cases about .020 off lifter plunger seat,which with 24 threads per inch is about a quarter turn.It's called insurance.As with so many other engine issues your bound to get a lot of opinions.Good Luck and have fun.Remember experience is always the best teacher, I would run yours the way they are set.