Looking into a twin-bore throttle body with both butterflies vis…

Head-on close-up down the mouth of a progressive twin-bore throttle body with both butterfly plates visible, a hand at the top working the throttle cable and linkage springs. Red plug wires, a distributor cap and braided lines fill the engine bay behind, with a white air-cleaner lid in the foreground.

AI caption July 2007 · Photo 206 of 368