hurst olds 307 350 swap 1983

Newbie here. The car I was always interested in seems to have come up not too far away. I always liked the G-bodies when I was a teen. My family had an 81 Grand Prix. Fun for its day. The Hurst Olds caught my eye in 1984 when the ad appeared in the car mags. It seems that an 83 has come up...