Air/ fuel tuning

Another novelist.
That could have been a lot shorter and with alot less cornhole smooching.
You have one foot in and one foot out
Those things you echoed aren't being recycled here because he has an afr gauge, he doesn't need to lean the jetting till surge and back up 2 because the gauge will tell him how which way to go and how far.

The pump cams could be a hair off from ideal when it comes to the pump shot curve, even near 40 mph as could be the power valve rates too low and is late on enrichment.

Does it lean blip stomping on it at 70mph?