I agree w/Matt. You go HD on all your parts for 35s and get robbed. I did the AGR box/bracket, shimmed it all correctly, hd steering stabilzer, D44 rear w/hd gears etc. I should be strong enough for 38s! But try to find a shop that will order 2 or 3 sets of tires to see which look/fit the best. It's a crap shoot, for the easiest thing to mount on a Jeep....that will also have the most effect on handling and off road performance.
dual plane i didnt have any problems with 150 hp shot.........one thing thru the years running nitrous the engines respond a lot better to low rpm shift points....on the engines running 7000 rpm N/A...... with nitrous ran faster and more mph at a lower 5500- 6000 rpm shift point......