Anyone have an idea what this is for? It's mounted under the dash on the passenger side. It's an adjustable knob that is wired to a small box. The wires look like they lead to the MSD ignition box but they are broken off at the knob. I know this is not a FFR part and the MSD instructions don't mention it.
Car was purchased already built and the seller is not the builder. I'll investigate further on the weekend.
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