67 barracuda alignment specs needed

Measuring it is only half the battle. Where shops/technicians have trouble, especially with older cars, is in making the correct adjustments & in the correct order. Adjustments MUST be made in the correct order or nothing will be correct in the end. Ride height 1st, then CASTER, Then CAMBER & finally TOE. The most common problem is people don't know how to correctly adjust the Caster & Camber with the eccentric bolts & that causes problems.
I always(after verifying the ride height is in spec & adjusting that as necessary) Set Caster to as much as I can get out of it, because inevitably you are going to have to give up some of it when adjusting camber into spec. Then set my Camber to my desired spec & finish with Toe.
If you don't know how to make adjustments correctly with the eccentrics then it is probably best left up to a professional who is familiar with doing it.