1969 Daily Driver

.013/.023 hot did it for me.By hot I mean fully warmed up, and no rush to get the cover off. I know the book says ten and twenty, but mine ran like crap,set like that.
But by now you may have noticed that the valve stems like to wear ruts in the rocker arms making adjustments tricky. I take the proper sized feelers and cut them to a little less wide than the stems. Then they fit into the ruts, and makes adjustments quick and easy.
I set each cylinder separately and in the correct firing order,with the piston always at TDC compression. I marked my balancer at 120* intervals to make this easy.