Crap handling

[totta Crolla]

Getting somewhere now, drives better with no wandering and has plenty of grip (removed rear arb) I'm just left with one problem though.
Having sorted the bumpsteer by aligning the inner steering balljoints with the TCA pivot bolts I adjusted the tie rods and removed/re-fitted steering wheel to suit.
Whats the problem ?
Car is steering left, if I let the steering wheel go and stop the car the front wheels are both visibly pointing left. It's obviously an alignment problem but could it be the caster rather than the toe ? I have set the toe accurately but have no way of checking the caster.
Could I have set the toe when the front wheels were not exactly straight, if so how do you ensure they are dead straight