EFI tuning in Longview, Texas

LS tuning that starts clean, drives right, and pulls safely.

LS swaps, carb-to-EFI, and full calibration—clean cold starts, stable idle, crisp throttle, and safe power.

ACES EFI • Holley EFI • HP Tuners • TunerPro

Fast turnaround

LS swap setup, drivability, WOT safety, and data log review. VATS, injector data, trans and fan control, baseline fueling & spark.

  • ✔ LS swap start-up & base files
  • ✔ Drivability & carb-to-EFI
  • ✔ WOT safety
  • ✔ Data log review & revisions
Engine bay performance build
Service

Aces EFI Tuning

HP Tuners or PCM Hammer/TunerPro setups: VATS, injector data, MAP/MAF, trans settings, fans, and a solid baseline calibration.

Laptop data and tuning
Service

Holley EFI Tuning

Send logs, get revisions. Best for street builds, weekend track cars, and DIY swaps on HP Tuners, Holley EFI, and ACES EFI.

Performance car on lift
Service

HP Tuners EFI Tuning

Trouble codes, odd idle, lean spikes, misfires—find the cause with structured logging and platform-specific checks.

Workshop planning and process

LS Swap ECU Setup

Startup and base tune: get your swap firing, idling, and driving on a safe baseline before you push it.

  • We configure the ECU for your combo—VATS off, injector data, MAP/MAF, trans and fan control.
  • You get a base file tuned for cold start, stable idle, and baseline fueling & spark.
  • Ready for first fire and break-in.
Road and performance car

Based in Longview, TX

Midgard Industries is owned and operated by Charlie Moyer. Local support is available by appointment.