Rx7man
Cattle Rubbing Post
Perhaps you can spray something like carb cleaner around the intake, etc while it's running to see if that changes it's characteristics.
It seems the symptoms have changed..
I'd check for pinholes in the fuel hose (I know you said you checked it twice).. You probably won't notice an air bubble at WOT, but at idle it can really mess things up.. worst part about them is sometimes they won't leak fuel out to show you where it is... Metering lever would be something I'd look at again, maybe raise it a smidge
It seems the symptoms have changed..
I'd check for pinholes in the fuel hose (I know you said you checked it twice).. You probably won't notice an air bubble at WOT, but at idle it can really mess things up.. worst part about them is sometimes they won't leak fuel out to show you where it is... Metering lever would be something I'd look at again, maybe raise it a smidge