'68 318 to carbed Magnum 5.2: Check my checklist
Did some asking. Stock valves, light surfacing on heads.
At this point, I'll be content with a home-done valve lapping job if the valves are tight in their guides.
I also have this coming week off, so I might go punch-drunk and try drilling these heads for the LA bolt pattern on my friends Bridgeport mill, rather than order and wait for a Crosswind intake to arrive.
Frankly, I hate the idea of the cheap Chinese casting to begin with, so I'm not that against the idea of drilling the heads.
-Kurt