‘67 barracuda heat soak and timing issues

here's some folks who have 'been there done that'
There's more.
https://www.forabodiesonly.com/mopar/threads/electric-or-not.585574/#post-1975129022
https://www.forabodiesonly.com/mopar/threads/big-block-overheating-no-thermostat.584781/page-2
https://www.forabodiesonly.com/mopar/threads/fan-options-318-barracuda.580419/#post-1975053847
https://www.forabodiesonly.com/mopar/threads/over-heating.577688/#post-1974988657
Then there is the issue of what it does to the electrical system.
People tap in at the battery but the battery circuit was only made for the battery. Tapping in there puts a constant load on the bulkhead connector and the fusible link and makes the ammeter read wrong. Then they blame the ammeter when stuff melts or the alternator output is messed up.