Well, it's been running fine at .040 but besides looking like I gapped them with a box nail the plugs were on the black side. Book says .025 with stock points so maybe I'll split the difference.
I posted this same answer on another site, but will share it here too, it's my own two cents worth.
Spark plug gap is more determined by the coil output. If you still run an original style coil with the resistor wire, the gap needs to be 0.25. If you run a 12v high output coil, you can increase the gap to 0.40.