Car idled rough so I had to back all 8 mixtures screws out 1/8 more. No blower surge. Checked the AFR and Aha! A difference, although only .4 AFR. But the misfire at 2500 was reduced. Added one more strand to each bleed and now the IFR is down to 14.9 @ 2500.
Okay, I must have misunderstood this comment.