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A larger throttle body only makes sense if the existing throttle body has a significant restriction at wide open throttle. In general, larger diameter openings are not desirable for part-load conditions. Remember the good old days of four barrel carbs, with small primaries and large secondaries. Most of the time the engine ran quite well with the small primary openings.
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.
