BBk 1761

Dyno tests have show that a 75mm T/B has proven to have little to any ill effects on a stock or near stock later model 4.6L performance. The larger throttle body doesn't kill your low end/mid range torque like they used to on the old 5.0L OHV's. Will it be overkill....probably in the sense that you wouldn't possibly be able to utilize the additional airflow being introduced without further supporting mods, but not in the sense that it's going to have any sort of negative impact on performance.

Not to mention that if later on down the road, you decide to get a little more aggressive with your build (like most of us do) you won’t need to step up in the throttle body department again.