38-year-old Devlin, who enjoyed two spells with his hometown club, feels that the Blues already have a striker in the same mould as Zamora - Cameron Jerome.
"Zamora's had his best season ever last year for Fulham but he's not the type of forward I would be going after," Devlin told the Sunday Mercury. "Okay, Zamora's played a lot of Premier League football and I saw Blues linked with Carlton Cole as well, but both are very similar to Cameron Jerome.
"Blues need a different type of forward, somebody who would nick a goal out of nothing not someone big, strong, powerful and quick, who's going to bustle people over.
"They need somebody who, when the ball bounces in the box from a corner, he's there to tap it in. A real 18-yard box player."