Next, the LT1 Adapter harness, part No. 6000-6709, was plugged between the factory coil and the Electronic Trigger box. The stock coil is down there sideways; it's hard to see but easy enough to access with the air intake out of the way. This little harness will only set you back $24.84. As we completed this easy unsnap-snap operation, we laughed thinking about all those carb-and-points EFI haters who were currently doing some fancy wiring to accommodate Crane's high-tech box.