So is it falling on it's face when you stomp the pedal? Or as you "ease" into it?
You're right - if you already bumped the squirter up - then you could be masking a lean primary... usually I'd bump the squirter and or power valve if it "hesitated" as I jumped on it... because it's just there to help the "transition" as you open the blades up quickly (adding fuel to "richen" with no vacuum).
Typically - you divide the vacuum reading in half - gives you a good power valve size.
Lean - usually feels like you're running out of gas or a "flat feeling" to the pedal... and or a lean "miss". Funny how many people chase the ignition system when they're really feeling a lean miss...
I HATE carburetors... :>)
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