IT APPEARS to be a gearhead’s seventh-heaven dream — Black Kat Kustoms, the Santa Ana garage launched by Social Distortion grease monkey Mike Ness and his mechanic pal Don Nemarnik in 2003.

Almost no one walks into a Social Distortion show with switchblade scars, a hard luck story or the keys to a flat-black ’54 Chevy stuffed in the front pocket of their cuffed-up Levis. Everyon… ...