Been in the 5's with this turd. Sbm, 1 stage nos, 3280lbs, powerglide, 8 3/4 stock wheeltubs, springs in stock location...hell it still has the original shackels from 69 on it lol, Cal tracs with Rachos on the back and CE 3 ways on front..275/60 M/T radial with 8" wheel, its all about power management and finding a happy medium