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The Granatelli MPG Plus ignition wire set for 1967–1974 Mercury applications with the 6.6L V8 is a vehicle-specific spark plug wiring assembly from Granatelli’s MPG Series. The description assigns the set to Mercury models across that year range. As part of the MPG Series spark plug wire family, the listing presents it as the MPG Series spark plug wire option for those Mercury engine configurations.
Granatelli 67-74 Mercury 8Cyl 6.6L MPG Plus Ignition Wires
