"Home-Brewed" Battery + and - Terminal Blocks Finished Photos Added

rednesss said

Run a #4 wire from the Bat+ on the starter solenoid to a power dist. block, it's the same as being connected to the battery directly.

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In my experience, the starter solenoid releases a huge spike when ignition switch goes from crank to run. An original starter solenoid post, is typically a 3 foot tap from battery terminal, perhaps #8 cable. Dart67 has a much better solution.