What's this? A laptop computer in a '69 Chevelle? In a few minutes, Clarence can modify and upload various fuel and ignition maps into the ACCEL DFI's computer to compensate for track conditions. Detuning the big 502 is necessary to stay competitive in the EFI 11 class, which runs on a minimum 11-second index. The laptop makes it quick and easy to take a few ponies out of the Rat. Check out the factory tilt wheel and power windows and the switches hidden under the console door. Swap out the race buckets and tach, and the interior is pure, unadulterated '69 Chevelle.