13. For a super clean installation, the FAST computer was mounted beneath the dash. This location made it easy to route the wiring harness through a one-inch hole that was drilled in the firewall, directly above the trans tunnel area. The harness includes connections for the injector harness, MAP sensor, distributor, throttle-position sensor, and coolant temperature sensor. Most of them were routed in the lifter valley area to keep them out of sight.