Your first car upgrades? (Electrical/Mechanical)

On my most recent purchase, ‘67 Barracuda convert.,
replaced ignition box due to a miss above 4000rpms, then replaced non working radio with am/fm/Bluetooth unit, next swapped out the 2.76 peg leg for 3.23 suregrip and big bolt axles, fronts had wilwoods which have both bolt patterns,so a simple moving lugs the the larger pattern.

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