WhenI turn the car on it starts fine but when I try and turn the key it doesn't turn off. I have to pull the choke out really fast to kill it. Is there something wrong with the key cylinder or is there another problem.

 

check your coil wirings, i know if u run ur leading coil off a non switched power source it wont stop running

 

hahah most of us 1st gen owners wish our cars would start rather then not lol