About
The shop
Spearmint Dyno started in Santa Paula, CA with a simple idea: stop guessing and start measuring. What began as tuning friends' LS swaps and classic muscle turned into a full-time shop built around one thing — verified numbers on the chassis dyno.
We specialize in Holley EFI and standalone ECU tuning, but we're just as comfortable jetting a carb on a big-block. If it makes power, we'll make it make more — and prove it with a printed graph.
Team
Meet the tuners
Eric
Placeholder bio — Eric's background in tuning, Holley EFI experience, and what he drives. Replace with the real story.
Dustin
Placeholder bio — Dustin's background, specialties (builds, diagnostics, carb work), and what he drives. Replace with the real story.
Why dyno tune?
Guessing is expensive
A butt-dyno and a vacuum gauge can only tell you so much. The chassis dyno measures exactly what your car puts down, then shows you precisely where fuel, timing, or airflow is leaving power on the table.
A proper tune isn't just peak numbers — it's idle quality, throttle response, drivability, and reliability. We tune for the way you actually drive, then hand you a graph that proves it.