1967 Camaro Fac Tach-what powers it? What is this wire?

1967 Chevrolet Camaro

67-72 CHEVY TRUCK PERFORMANCE BLACK - New Vintage USA

New 6000 Red Line tachometer for your 1967 Chevelle. This super cool tach originally mounted to the dash on the Left Hand side by your

1967 Chevelle 6000 Redline Tachometer with Blinker Turn Signal in Tach

67-72 CHEVY TRUCK PERFORMANCE WHITE - New Vintage USA

68 Fuse Box Maxed Out

1969 Dark Green Chevelle

2198 Gauge Wire Harness, Universal, for Tach/Speedo/Elec. Gauges, Incl. LED indicators

GAUGE WIRE HARNESS, UNIVERSAL, FOR TACH/SPEEDO/ELEC. GAUGES, INCL. LED INDICATORS

how to install wire up a tach tachometer the right way GM for

Ultra Rare 1967 Chevy Yenko Super Camaro To Be Auctioned