Engine Modifications, EFI Conversions, Dyno Tuning and Rental, Suspensions and More!
About Goblin Garage
JC Petermeier
Owner
JC Petermeier grew up in the world of hot rods. An enthusiastic drag racer, Petermeier owns and races a 1970 Nova with a 565 cubic inch big block Chevy. Petermeier has multiple certifications in tuning electronic fuel injection stand-alone ECU's, HP Tuners generation 3 and 4 LS engines, GM ECU's, HP Tuners generations 5 LT engines and Holley training.
Alex DeBoef
Alex DeBoef grew up as a gear head, who started as an apprentice mechanic and has now been working on cars for 7 years. He excelled quickly in the automotive technician field and worked on performance vehicles as a hobby prior to coming to Goblin Garage.
Dallas Smith
Dallas Smith grew up drag racing and working on cars. He has worked in the automotive industry for 10yrs, doing mechanic, body and detail work. Since becoming part of the team at Goblin Garage Dallas has moved into the management side of the automotive world.
Trent Herrera
• Trent Herrera grew up surrounded by performance vehicles, learning the ropes from his family and diving into hands-on work as soon as he could drive. His passion for drag racing and automotive performance has only grown over the years, fueling a deep commitment to the craft. In 2025, Trent joined Goblin Garage, eager to expand his skills and contribute to a team that shares his drive for excellence. Since then, he's become a valued member of the crew—bringing energy, expertise, and a collaborative spirit that strengthens the shop's reputation for high-performance innovation.
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Address: 203 Mill St SE, Mitchellville, IA 50169
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