I think I've only ever heard "Black Betty", how's the rest of their stuff?
It's hard to answer without a brief history of the band: "Black Betty" was actually a song recorded by guitarist Bill Bartlett's original band Starstruck, which broke up shortly after. The song and Bartlett were picked up by bubblegum producers Kasenetz and Katz and the song was marginally edited and released under the name "Ram Jam". When the single became a hit, a new band was tossed together and a bunch of tunes were lined up for a very mediocre debut album. The record label and media showed little interest or respect for the band after "Black Betty" fell off the charts and in their anger and disgust, the band added heavy guitarist Jimmy Santoro to the mix, ironically edging founder Bill Bartlett out, and wrote and recorded an album of hard rock classics called "Portrait of the Artist As a Young Ram". The album is considered by many (myself included) as one of the greatest rock albums of all time: edgy, soaked with guitar and growling vocals, and hooky without being too "pop". And it has almost nothing to do with the band's biggest hit "Black Betty".
Weird, huh?