I've been following the Ron Paris tuning method and my car runs great but fails the pinch test. It will hold 260-280* all day long which I am fine with but when I do the pinch test it dies immediately. My needle balance was originally too lean on the hsn and too rich on the lsn. Runs great now!

The pinch test is just to get you close on the LSN and then you can fine tune from there.

As above, I agree. Hoever, be advised that your LSN is set a bit lean if it dies immediately from the pinch test, although as said, that may be fine as the pinch test is only to get close.