How to "rough in" front end alignment after rebuild?

I usually take it as a good sign when businesses have to book you days or weeks out. When I spoke with him on the phone, I asked if it would help if I brought specs for him, he said no need, the numbers are all in his head. And that he's been working on these cars since they were new.
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Careful, while he may have numbers in his head, they are probably for bias ply tires. Had the same thing happen to me,.great old timer, but I brought my specs in he said why would you want these specs and I replied because the car isn't stock. He didn't have much of an answer after that.