I suggest when you talk to Liberty Gear see if they can set your 833 up with a lower first gear somewhere around a 2.9 to 3.0 ratio or find a 3.09 first gear set 833 to get the weight moving. Call one of the clutch companies that build adjustable sinter iron clutches like Advance Clutches ( they will set a clutch up specifically for your combo), McLeod (soft loc), or Ram, they just came out with a new 10 inch adjustable to fit the Mopar 130 tooth flywheel. McLeod and Ram will just give you an instruction sheet and it's up to you to figure out. Your other option is to talk to weedburner (Grant, very knowledgeable guy on clutch cars) on this site about his Clutch Tamer. My Dart weights in at 3380 lbs and puts the car at a tic under 3600 lbs at race weight and will 60 foot in the low 1.50 shifting second gear about 50 feet out with a 3.04 first gear and 4.10 geared Dana 60 (soon to be 4.30's) and McLeod Soft Loc set up to shift with the clutch. I could 60 foot quicker if I shifted clutchless but I would rather give up the time for the longevity.
