The 4.10 in the MK2 and dog transmission seems just about perfect for 4th gear, the RPM, and the 1/4 mile. The last dyno verified speed I did at 8,800RPM in 4th, was 156mph. I didn't have a tire for it, so I calculated the 5th gear speed to 208MPH at 8,800RPM. I'll never go there. :)