Unlock the full potential of your EFI system—without ever stepping into the shop. Green Mountain Gear-Heads offers remote tuning services for Holley EFI and Emtron engine management systems. Whether you’re working with a custom Ford, Chevy, or Mopar build, we calibrate your ECU for optimal performance, reliability, and drivability.
We specialize in remote ECU calibration for American platforms, including small-block Chevys, LS engines, Coyote swaps, and Gen III Hemis. Our experience spans naturally aspirated setups, boosted combinations, and full race applications.
As one of the most trusted EFI systems in the industry, Holley EFI offers great compatibility—but tuning it right takes experience. We optimize fuel, spark, idle, boost control, and drive-by-wire settings remotely using your data logs and live tuning sessions.
For drivers who need advanced control and motorsport-level customization, Emtron delivers—and we’re one of the few Emtron specialists in North America. Our remote Emtron tuning services allow full use of its features, from CAN integration to torque modeling and advanced traction control.
You send us your build info (engine setup, injectors, sensors, etc.)
We’ve tuned hundreds of engines across EFI platforms, and we know how to interpret logs, identify edge cases, and optimize for real-world use—not just dyno numbers. Whether you’re dialing in a Holley Terminator X or exploiting Emtron’s full strategy suite, we deliver precision results from anywhere in North America.
Book a remote session today and let’s start extracting real horsepower from your bui
Green Mountain Gear-Heads primary focus is on domestics, but can sometimes support non domestic builds.
8 AM - 5 PM
Monday - Friday
85 Shunpike Rd, Williston, VT 05495