You will be in deep doo-doo if you set toe on a 70 Nova with the front end up. Come to think of it, that goes for Camaro too. Seems that the wheels toe in about 1/8" for every inch the front end goes up. If you set the toe with the front end jacked up, when you get on the brakes to stop, the toe in changes to toe out

Can get a little interesting at about 100 or so. There is a race car alignment guy in Ohio that can cure that, but you're gonna have to hurry if you want to get that done by the first of September.