I've just finished installing a 4" susp. lift (springs all around) on my newly acquired K5. I'm now looking at tires/rims. I know I will be getting some 15x10's but what size tires should I consider without losing too much power. I'll be turning them with the original 10 bolt 3.73's. I'm leaning towards 33x12.5 but the 35's sure are tempting.