I have SS springs on my 'cuda with a sway bar & 4.3 rear gears. on unprepped tracks i get 1.5-1.6 60's footbraking it. I'm limiting the power on my combo as the class I race in has an 11.00et cap, but on a prepped track we'll go 10.5's. I have better traction with MT Drag radials than the Hellcats. I'm so consistant with this combo, on prepped track meetings my et varies by as little as 0.03 over the whole day. Winner winner chicken dinner.