Starter solenoid

[Painter]

You guys are making this way to hard. Simply put a jumper wire between the battery post on the starter and the start terminal. Now when the “slave solinoid” is triggered it sends voltage to both terminals! Wow! How simple can you get. No small wire even going to the starter to get burned by the headers. Battery cable going to the starter is only hot when you try to start. Takes very little amperage to trip slave, and the solinoid on the starter is trip by battery voltage and amerage. Win-win situation.