I've never been afraid to expose my ignorance in order to learn something, so here goes. Does anyone run a four-link setup in a blown alcohol 125" altered or are they all hard tails? If the four-link simply doesn't work...why not? Where is the performance limit (in terms of 1/4 mile ET) where a hard tail becomes necessary as opposed to a four-link? Is one more prone to tire shake than the other? This would be a 125" 23T bodied altered with a short stroke/large bore 446" BB Mopar wedge. SSI 1471 std. helix at about 20% over. JW cased glide with 1.80 first gear. Chassis would certify 10.2 (6.00 sec. and slower) regardless of rear setup. Will need to run 7.00 in quarter. Thanks to any and all who respond! Any info on this subject would be greatly appreciated! Mark.