while i was working on the car(1968 Camaro SS/RS 350) the electric choke stayed wide open and it would not close so the car would not start. after i found out the positive side of the elec. choke was loose we fixed it and put it in a new 12volt keyed accessory plug, the choke closed and was now working. but now when i started to drive it the car was running like a champ, but then when i came to a stop it sputtered and went to low rpms and died. after i put it in park the car would start up then i put it in drive and would slowly die out. i hope you guys possibly know what would be the problem.