Another timing curve question

Been away on business for the last week. Post office has screwed up the arrival of my 11/22 degree slot piece from Hops anyway, but it'll be ok with the 13/26 for now ;)

I decided to convert my carb to 4-corner idle, and bought a Quick Fuel 12-700 baseplate instead of trying to drill tiny idle holes in the existing one at awkward angles. Today I drilled/tapped the secondary metering block for idle circuits and needles. That was a bit nerve-wracking but they work and are solvent-tight when closed :)

Tomorrow I'll start on the main body (just a few short straight holes). Also considering drilling straight down through the air cleaner stud hole and putting a removable orifice in, so I won't have to drill holes in my brand new butterflies to maintain the proper idle speed with the t-slots in the right position!