Spark Plug Advice Needed

I drove my car today for and I noticed it started about the same but idled smoother at 750 and there is a 50 rpm drop from neutral to drive so that worked out.
I haven't tried a hotter plug yet but will try that Monday and maybe the new metering rods will be here by then too.
I don't know what the initial timing is yet because my timing light quit on me and I ordered a new one and it's not here yet.
Supposed to be hotter than hell this week so those plans might change.