Well, duh. It never occurred to me your .005" was the head's growth! Now that I re-read your post, I can see that your meaning should have been understandable to me. I'm sometimes unable to generalize language.

Anyway, at least we arrived at the same growth independently. I also forgot to mention to use some silicon gasket sealer between the brass plate and the carb, at least. You'd be surprised how much air can leak by that interface. It could cause the engine to run lean.