FLY HIGH MONACO Enuff Z’Nuff and vocalist Johnny Monaco part ways     METAL SLUDGE EXCLUSIVE: In what appears to be a mutual decision, Monaco said he has no plans to return, as founding bassist Chip Z’Nuff has taken over lead vocals   LOS ANGELES — Johnny Monaco, lead singer and guitarist for Enuff Z’Nuff, has announced he is out of the band in the wake of Enuff Z’Nuff playing in New York this past[…]