That's what I'm wondering, there decent dyno evidence that at least to 2500 rpm most these engines should be ok torque wise, so 1,500-2,000/2500 rpms maybe in question. Even with a stock stall realistically how long your spending under 2500/3000 rpms a fraction of a second maybe 1-2 at most during a full throttle run, even when you pass or merge car should drop down a gear be at 2500/3000 rpms.