I cut consistent 1.6-1.7 60's with my tuff country 6" t bar bolts gone 4 inch blocks and long bars On 33x12.5 toyo at2's. It was smooth from 0 to106mph with aftermarket front shaft. I realize 1000rwhp is gonna be a totally different animal, thus the reason I no longer have the lift. Good luck, might want to set aside a driveshaft hoop fund as well.