hey legends,  looking at options for a sh*t light for at the drags to help run more consistent times. I have wired up plenty of sh*tlights before on cars with old school distributer ignitions but have no clue how to hook one up on a BA. looked up holley sniper ones that plug into the OBD11 port but dont know if they will work on a Falcon ? what are others running and how are they hooked up ? 

Had a quick look. The have a direct hook up version of the one you looked at. This will have a faster response time than OBD. Looked pretty simple to hook up, just piggy backs off one of the coil or injector signal wires. Then configure the right RPM pulse.