They will end up there in a couple of years anyway after losing their arch and becoming more flaccid than an 80 year-old man.
Buy springs from someone with a better reputation than MP.
'63 Dodge 330 11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs. 10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.