Help

Ok so heres the scoop i have a gt mustang i just bought as some of you know. Now the car is in great condition its great but the car pulls "sometimes" and only "sometimes" other times it will drive fine. And then i notice that when i go in reverse its hard to cut the wheel sometimes. Now i dont really drive the car it was kind of my project thing. I bought it with the body in great condition newer engine. So that i can put it in the garage play with it all summer and winter and then bring it back out next summer. I know the car was wrecked i can tell the body work on the hood other then that you can not tell anything. the hood has a little dent on it and when i had it buffed the driver side corner of the hood you can tell was fixed. Im thinking maybe it pulls and does that because of the wreck. I dont know if i should have it looked at now or just wait till after winter. For all i know it could be something little tho. Just wanted your opinion's
thanks guys, Dan