Where do you think he will find the RPM limiter to the point where a gearing change is needed, 1000ft?Wyatt Stengel with his lb7/4L80e powered 70 K15 rclb made a new personal best this week during SickWeek yesterday and went [email protected] on the brakes because he couldn’t go faster without a license. Truck is 4250lbs with me tuning the ecm and Buddy Callaway tuning the transmission. This thing is going to be real fast when we get it all completed sorted out and he can run it out the back door!