He played in every game for the Eagles for the next 4 seasons, including starting every game at right linebacker from 1966-68.
After 3 seasons as a regular, he was cut during 1969's training camp. That seems a bit odd, given the shortage of linebackers the team had during 1968.
The record shows he was quickly picked up and released by the Giants. The Falcons also took a look at him in 1970, but he never played again after his Eagles' career.
RetroCards that I just got last month as part of their 1968 Eagles set.