You sure ?
May be so minute a difference you hardly notice it, in that case you are pretty close, but slightly on the low side and lean too.

If your sure tho then
Possibly yes and lean bottom too.

I need more info tho !

How long untill it dies from when you pinch it ?
Is engine cold, warm or Hot ?
Cold being just started, warm being been running few minutes while testing pinch time and rev up, hot being done at least a 1/2 a tank of running hard.