Actually, for a period of time, my '64 Custom/427 was higher in the front than the back---but it was because along with the TractionMasters in the back, I put in a pair of spring jacks in each front coil, and then had the alignment re-set to get the camber back in place. I'd crewed on a Willys Gasser not long before I ordered the '64 and Gas cars were all set up high in the front, supposedly to help weight transfer and, therefore, traction.
I discovered that with the front up and a 3.50 gear and 8.20-15s on the rear, the car was capable of over 150 out on the Interstate. But the steering got light at about 125-130, just as I was shifting into 4th. (3rd made a good starting point for a 'hundred-up bash') By 150 MPH (from engine RPM and tire circumference/gear calculations) it got pretty scary. The air caught under the raised front was lifting the front further and steering feel was going away.
So I lowered it back down.
KS