Muscle Mustangs and Fast Fords Editor Loves The Ultra HP!
We recently tested a series of Holley HP carbs on a mild 383 stroker for Super Chevy magazine (650, 750 and 850). Ultimately, the 750 provided the best all-around power and performance, but all three carbs did well and had amazing out-of-the-box performance. The engine fired right up after installation and with a small adjustment to idle rpm, each carb ran smooth and made good power. The 750 was the best on this combo and provided excellent throttle response and more power than the carb it replaced.
- Evan Smith, Editor of Muscle Mustangs and Fast Fords