optimum tuning specs stock 66 225

Does anyone have advice on tuning specs for a 66 225 engine- I'm going to set valve lash to .010 na d .020 cold is this ok?- as for timing I'm going to advance it until I hear it pinging and then back it off a little. The last time I worked on a slant 6 was my first car a 66 dart back in 74'- I'd be glad to hear about any other specs or tricks you folks may know about. thanks Dave