Looks clean. Just curious what is your AFR at steady cruise?
Last time it was checked was on a chassis dyno and it was 13.8 at a steady cruise at 2500 and 3000 rpm.
That was 11 months ago and I have changed valve lash since then as it seems my lifters like 0 lash.
I have pulled a very heavy 20 foot pontoon to the lake a few times and hauled many loads of dirt and scrap iron.
E10 and 100% gas has been ran through it. It's not picky really.
I gave it the jetting it liked best not caring what some AFR meter told me.
I have done that since I started playing with carbs as a kid though.
Give it what it likes and go on down the road.
I have tried leaner jetting and richer in both primary and secondary and keep going back to this jetting.
I drive a lot also.
Not near as much as I used to though.I used to drive 70,000 miles a year.. This one has about 15,000 miles on it.
Some days It gets driven 400 miles.
Rain and sleet, salt on the roads it gets driven.
It will see 7000 rpm a few times each time I drive it. Lead foot disease.