Hello everyone, Been a Z fan for a long time. I've owned a '73 for about the last 25 years. I'm in the process of installing an older Accel DFI unit on the car. Has anyone attempted this challenge?? One of my bigger questions is the positioning of the targets of the crank trigger relative to TDC. From everything I've read looks like it should be about 40 degrees... for a total advance of 40 degrees. Also wondering if anyone has any calibration/configuration files they can share. thanks Joe in W