I have seen a 4Runner on 37 inch tires run 80 mph with a mostly stock 22RE. My stock 22R will run 70 mph most of the time without problem. Durability and Reliability are also things to consider. If you are going the HP route rather than gearing, then you don't need a 4.70 gearset.
LOL, yeah I can go 90 MPH with my truck on 30" tires, but it takes 5 miles to get up to that speed! I'm not dissing you who love your 4 bangers, but there is no denying the fact that they are not exactly torque monsters and if you actually needed to accelerate quickly to save your ass, it just isn't gonna happen. And I never said anything about 'going the HP route', I simply want a motor with a good torque curve that will get out of its own way and drive nice.
