Bought the 86 gti 8v in feb and only recently started really using it. It drove like a dream with the wheels it had on there (ugly looking 13" steel's). So i spent time cleaning it up and got a set of 15" BBS RA from fleabay and put them on this weekend and noticed it was pulling a bit to the left.
I checked tyre pressure etc and corrected to make sure it was ok. So this morning i drove it to work and it was the worst drive iv ever had in the car! It felt like awful! Any bumps in the road and the car jerked to the left, it vibrates a bit at speed, so much so that i was scared to go past 40 and its a 20mile ring road trip to work

Its symptoms seem to be
pulling to left,
loose steering and it feels like im gonna loose control of the car even going slow
Vibration (not too bad but mix this with the loose steeering and it jerking hard if goes over a manhole or something makes it quite not fun)
Any idea's? The wheels already had tyres and weights on them so I assumed they would be fine to fit as they were?
Any help would be appreciated!