What to do first

[buddyholley19]

Hope this is not a silly question. I want to set my timing and adjust my carb idle. What would you do first. The car runs pretty good .Starts great new rebuilt carb last year (from berts) No big issues. I do know I'm idling a little fast. Im having some issues double clutching when I gear down from 3 to 2.I have changed the 600w oil in the tranny. still learning thanks in advance .