Oh yea!
I just meant that the spring needs more force, to overcome the vacuum sooner when he pushes his foot down at cruise. Sometimes what I mean and what I say don’t come out the same.
Both.
When you tightened up the secondary door, it comes in later and slower. That will enrich the mix. The door also may not be fully opening. 2-1/2 turns from a dead handing door is the suggested starting point.
The carbs secondary door should open up as soon as possible or as quickly as the engine can handle it without issue.
Did you ever get a lean surge before you raised the rod tree??