Originally Posted by onehundred80
Gary's (Valky) before tune. You can see the flat area quite well.
Why hit the limiter?

So it looks like peak tq was 198-199ft.lbs at about 2700RPM? And falls off at 4400. If I understand the graph correctly then optimum shift would be about 5400RPMish then right? No point at all to climb anyfurther