[decooney]

The former magic tuned Holley 780cfm vacuum secondary carbs I originally ran on both of my 428 Cobras don't hold a candle in throttle response and snap-rev I see with my current Holley 830HP double pumper. I agree, taking the next step into the future the QFT carbs are the next level in design and tunability with even more improved throttle response. As I'm finding out, if you ask them in person many old school engine builders and tuners don't know much yet about the new QFT carbs or the story of how two ex-Holley guys identified and corrected the flaws and started QFT. As others have said once you see or try one on your performance car or Cobra, you'll never look back.