Not really if you are talking about headlights turned to air inlets or a scoop in the hood that then runs through the air filter, but with full scoops straight into the carburetor, the motor has to be tuned to air flow at maximum forced air to fuel, rich at low rpm and I am talking about carbureted engines ( not fuel injected). Stepping down timing due to air rich mix is also a early common solution. This comment is for Panteras that retain a carburetor.
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