My 70 521 on Armada 20's Projector HID's, caddy rear lights, 4 inch blocked with only two leaf springs. torsion bars turned all the way down til I'm able to turn. L16 with straight pipe with glasspack cherry bomb.
My 72 521 on Infinities QX56 18's 4 HID's in the front. 3 inch blocks with all the leaf springs. L18 with SU carbs. 2 inch pipe to a Thrush muffler before the rear axle, my daily driver.