Seems to me that a tiny bit of engineering is in order.

If the rear axle is used as the fulcrum, the weight of the front of the car is going to be some fraction of the total car weight, maybe several hundred lbs, especially if the fenders and hood are on the car.

But if you simply move the fulcrum to the forward spring brackets, the front of the car will weigh much less. And if you move the fulcrum a few more inches forward, the front of the car will weigh zero or less than zero, meaning the car will actually tilt backwards.

When I can lift the front of the car with my own muscles and without too much effort, I figure the fulcrum is in the right place for a safe lift with an engine crane or whatever.