all small block without transistorized voltage regulator
THIS HARNESS IS USED TO FILTER OUT IGNITION NOISE CAUSED FROM THE THE ENGINE HARNESS, IT CONTAINS A NOISE CANCELING DIODE. WITHOUT THIS ADAPTER, NOISE INDUCED INTO THE T.I. HARNESS FROM THE ENGINE HARNESS COULD CAUSE YOUR ENGINE TO MIS-FIRE.
ACTUAL APPLICATION OF THIS HARNESS IS VAGUE, AS NO DOCUMENTATION IS AVAILABLE AS TO WHETHER IT'S USED ON A BIG BLOCK, SMALL BLOCK OR BOTH.
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