The rear gear is 4.88 to 1, the transmission is a 4 speed Jerico with dog rings and a 2.2 first gear no clutch is necessary to shift. Shifts cost too much time so that is the reason for big RPM spread and high numerical ratio. We ran it this weekend at the Del Mar Goodguys show and found that we touched 9400 on the only straight area of the track. Scott set fastest time both days won the pro class but clipped a pylon in the 16 car shoot out and could not overcome the 2 second penalty. He was always at least 1 full second faster than our competitors and many times two seconds faster. Our rear ride height was about .125 too high which made for a little more over steer than we wanted but once the shootout starts we try not to adjust to maintain consistency. We changed the VE map during the weekend which helped clean up low speed stumbles but we need to do a little more chassis tuning now to get the best out of it. According to the on board data acquisition there was another second available. We are putting new tires on and will start working on shock tuning now. Our tires were a year and half old so new tires will also help improve times. I had new tires in the trailer but these surfaces are so slick that you can't scuff them there so we need to scuff them before running the next Goodguys event. I will post the video when we down load it so you can hear an FE turning 9400.