Mitchells Performance & Tuning

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Mitchells Performance & Tuning Home to the Heartbreaker Dyno Jet Dyno.

10/13/2026

GUESS WHO’S BACK?!

We’ve been a little quiet lately, but don’t worry… we didn’t loose an engine with boost jenner, or get lost somewhere in the staging lanes!

We’ve been out wrapping up the 2026 racing season, putting in the work at Untamed Asphalt, chasing horsepower, and doing what we love. But now it’s time to hang up the racing helmet (at least for a minute) and get back to business!

WE’RE BACK IN THE SHOP, AND IT’S TIME TO MAKE SOME POWER

Whether you’ve got an engine that needs some love, a project that’s been sitting in the corner judging you, or a car that’s ready to hit the dyno and see what it’s REALLY putting down… we’re ready for you!

Engine builds and repairs
Dyno tuning and performance tuning
Horsepower gains and performance upgrades
Helping turn your hard-earned money into irresponsible amounts of horsepower!

Because let’s be honest… nobody ever said, “I wish I had LESS horsepower!” 🤣

We may have been away chasing the checkered flag, but building engines, tuning cars, and helping you get the most out of your ride is what we love doing every single day. And we’re back to keep doing exactly that!

So dust off those projects, bring us those horsepower dreams, and let’s make some noise!

Reach out, get on the schedule, and let’s see what your ride can really do!

The racing season may be winding down, but the horsepower never sleeps!

Had to take some time to show off these beauties! FEATURES/BENEFITS of BTR new Canted Valve heads!Designed to work with ...
10/12/2026

Had to take some time to show off these beauties!

FEATURES/BENEFITS of BTR new
Canted Valve heads!

Designed to work with Gen 3/4 LS1 pedestal-style rockers/bolts and Gen V LT valves (such as hollow-stem intake and Inconel/titanium options). Available in both Cathedral port (LS1/LS2/LS6) and Square/Rectangular port (LS3) 6-bolt configurations

Cast & Machined in the USA
11° x 5° Intake and 13° x 3 Exhaust Angles
Utilizes OEM-Style LS1 Rockers and Trunnions
OEM Manifold Patterns, Locations & Valve Covers
Superior OEM-Type Powdered Metal Valve Guides
OEM LT1 2.125" Stainless Hollow Intake & 1.595" Exhaust Valve*

Interested in a set give Mitchell's Performance a call and we'll get you taken care of!

09/22/2026

We have the Chevelle back in the shop to address several issues that were overlooked during the orginal build. Our goal is to make sure everything is properly corrected and completed to the standard it should have been the first time. Things are coming around in our favor now.

09/17/2026

Gotta love it when the customers **test the equipment right from the get-go.** 😂

No break-in period. No easing into it. Just **fire it up and see what she’ll do!** 🔥

That’s what we like to see—**put it to work!**



Some days we do what we call **“forensic diagnosing.”**Identify the **issue.**Identify the **reason.**Resolve the **issu...
09/15/2026

Some days we do what we call **“forensic diagnosing.”**

Identify the **issue.**
Identify the **reason.**
Resolve the **issue.**

This engine had a bearing problem, but finding the *why* behind the failure is just as important as finding the failure itself.

**Don’t just fix what broke. Find out why


5.0L Coyotes are the new talk of the town, and we had the pleasure of putting this bad boy through the shop. 🔥Don’t get ...
09/10/2026

5.0L Coyotes are the new talk of the town, and we had the pleasure of putting this bad boy through the shop. 🔥

Don’t get us wrong—we still love our tried-and-true LS. However, every now and then it’s nice to get our hands on something outside the norm and put our touch on it.

Different platform. Same obsession with making horsepower. 🏁💪

Mitchellsperformance.com



Sometimes we spend more time diagnosing than tuning.🔧This setup came in with a “tuning” issue…Turns out, it wasn’t the t...
09/08/2026

Sometimes we spend more time diagnosing than tuning.🔧

This setup came in with a “tuning” issue…

Turns out, it wasn’t the tune. It was a mechanical issue.

You can chase the tune all day, but if the hardware isn’t right, you’re just chasing your tail.

**Diagnose it. Fix it. THEN tune it.** 💥

Mitchellsperformance.com



**CARBURETOR TUNING AT ITS FINEST. 🔥🏁**Every adjustment matters. Every pull on the dyno tells a story. When the tune is ...
09/04/2026

**CARBURETOR TUNING AT ITS FINEST. 🔥🏁**

Every adjustment matters. Every pull on the dyno tells a story. When the tune is right, the car lets you know.

**No guessing. No excuses. Just horsepower.**

Mitchellsperformance.com



🏁 **RACE SEASON MAY BE WINDING DOWN — BUT WE’RE JUST GETTING STARTED!** 🏁As the seasons change, our focus shifts to gett...
09/01/2026

🏁 **RACE SEASON MAY BE WINDING DOWN — BUT WE’RE JUST GETTING STARTED!** 🏁

As the seasons change, our focus shifts to getting racers **READY TO GO TO WAR NEXT SEASON.**

🔥 **THE MACHINE SIDE OF THE BUSINESS IS IN FULL SWING!** 🔥

Engines are coming apart. Machines are running. Builds are underway. We’re putting in the work now so your car is ready to **FIRE UP, STAGE UP, AND HIT THE TRACK HARD** when next season rolls around.

Don’t wait until race season is knocking on the door. **GET YOUR BUILD ON THE SCHEDULE NOW!**

💥 **BUILD IT. MACHINE IT. TURN IT LOOSE.** 💥

🏎️💨 **YOUR NEXT WIN STARTS IN THE SHOP.**

Mitchellsperformance.com



08/31/2026

307 Outlaw Streets — True Street

We headed to 307 Outlaw Streets to compete in True Street with a completely untested combination. Different converter, suspension setup, vehicle weight, and power level than we’ve ever run before. While we didn’t quite bring home the win, I’m extremely proud of a 2nd-place finish against Andrew Uttech and the competition we faced.

I’m not a traditional no-prep racer. Most of my experience and focus has always been on the drag strip. Making the transition into the lower-prep side of racing has been a baptism by fire, but it’s also taught me a tremendous amount about power management, chassis setup, and suspension tuning. Every pass is another lesson, and every race is an opportunity to improve.

A huge thank-you to Zac Clymer and his entire crew for putting on a great event. Growing up in Wyoming, I can honestly say this type of racing has been needed here for a long time. It’s great to see the racing community continuing to grow and give racers another place to compete.

I also want to give a special thank-you to Ryen DeClue for helping get me into the groove, and as always, Perry Komick for all the advice, knowledge, and support he’s given me throughout the years.

And to Brian Nutter and his crew at Summit Racing Equipment — thank you for continuing to provide some of the best performance parts in the industry and for supporting racers like us.

Most importantly, thank you to everyone who has helped me, supported me, and contributed to this program along the way. I truly wouldn’t be where I am today without all of you.

A lot of people say, “Second place is the first loser.” I disagree.

Second place means you had the courage to line up, take the chance, learn something, and put yourself in the fight.

Remember:

> A millionaire won’t criticize someone starting a new business. An athlete won’t judge someone working to get better. And a real musician won’t criticize someone learning to play a new song.

The people going somewhere are usually too busy building their own path to worry about yours.

Keep learning. Keep improving. Keep showing up. 🏁

Address

136 Florine Lane
Billings, MT
59101

Opening Hours

Monday 9am - 6pm
Tuesday 9am - 6pm
Wednesday 9am - 6pm
Thursday 9am - 6pm
Friday 9am - 6pm

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