need cam expert

#1
or someone who knows more than me i bought an 84 gn in a box engine was out had to be put back together got a cam i think it was an elgin e913p but it was a pre 84 cam the car ran but didnt seem right i think its a204-214 with 449-473 lift after some research the pre 84 cam had a smaller base circle do i need a new cam or am i just screwed up