Do I have enough metal here View attachment 1715470593 to drill and tap the primary idle air bleeds?
(Not sure what the thread size is on the replaceable jets, but I could use a brass set screw and make my own).
I have not do it, but I've read of others doing it. I do know the sizes of the Power Valve Channel Restrictors I've changed are less than consistent. I used a decent quality drill index to gauge the size of the holes. Many were a size or 3 off or different than their markings indicated.
Are you using a wide band gauge to target the A/F ratios you are going after?
There is a lot of good carb tuning info on the site Taptalk. Much of it from military studies made for aircraft carb tuning starting in WW1.
