Big tires will kill a stock 3.4 fast. I'm wanting to run 38's to 39 1/2's on my truck.
depends on the weight of the rig as well, pickup or 4runner or?
i know dingman had his in a heavy 2nd gen 4runner but from what i know that thing was quick even with 36s iroks and the 39.5 bajas.
my buddy has a 3.4 swapped 2nd gen single cab truck all stock motor pushing 40" mtrs and his truck will pull any hill 80mph plus some power, he is also geared to 5.29, gearing plays a big roll in this.