# Foulks Performance

> Owner-operated automotive performance shop in Stillwater, Oklahoma specializing in engine builds, drag racing support, EFI tuning, diesel truck repair, transmission service, and electrical/wiring work.

## Business Facts

- Name: Foulks Performance
- Owner: Tony Foulks
- Address: 6219 E 68th St, Stillwater, OK 74074
- Phone: (405) 714-8364
- Email: tony.foulks@yahoo.com
- Website: https://foulksperformance.com
- Availability: 24/7 by phone or text
- Rating: 5.0 out of 5 stars
- Type: Owner-operated (Tony handles every job personally)

## Services

### Engine Builds & Rebuilds
URL: https://foulksperformance.com/engine-builds
Custom combinations, stock replacements, refreshes, and stronger rebuilds for street, strip, and work vehicles. Covers LS swaps, Coyote builds, and other popular platforms.

### Drag Racing Support
URL: https://foulksperformance.com/drag-racing-support
Performance-first planning, powertrain prep, and setup guidance for builds that need to leave hard and finish strong. Understands the full combination, not just individual parts.

### EFI Tuning
URL: https://foulksperformance.com/efi-tuning
Electronic fuel injection setup and tuning for stronger drivability, cleaner power delivery, and smarter engine combinations. Supports Holley, FAST, and factory OEM systems. One of the shop's core specialties.

### Transmission Service
URL: https://foulksperformance.com/transmission-service
Rebuilds, replacements, and cost-aware sourcing when the transmission is the weak link in the package. Covers 4L60E, 4L80E, TH350, TH400, 6L80, Allison, and other common platforms.

### Diesel Truck Repair
URL: https://foulksperformance.com/diesel-truck-repair
Diesel diagnosis and repair for trucks that need to tow, pull, commute, or get back to dependable service. Works on Duramax, Powerstroke, and Cummins platforms.

### Wiring, Swaps & Electrical
URL: https://foulksperformance.com/wiring-swaps-electrical
LS swap wiring, engine swap integration, harness cleanup, and electrical troubleshooting without hack-job shortcuts.

## Guides

### Engine Build Cost in Oklahoma (2026 Pricing Guide)
URL: https://foulksperformance.com/engine-build-cost-oklahoma
Comprehensive guide to engine build pricing in Oklahoma covering stock rebuilds, mild street performance, LS / LT swaps, street/strip builds, diesel rebuilds (Duramax / Powerstroke / Cummins), and full race engines. Explains the seven main cost drivers (rotating assembly, cylinder heads, camshaft, machine shop work, fuel system, EFI tuning, labor). Free quotes at (405) 714-8364.

## Service Area

Primary: Stillwater, Oklahoma
Common service area: Stillwater, Perry, Cushing, Ponca City, Perkins, Glencoe, Yale, Pawnee, Guthrie, Oklahoma
Counties: Payne County (primary), Noble County, Lincoln County, Kay County, Pawnee County, Logan County

## Vehicles Served

Camaros, Challengers, diesel trucks (Duramax, Powerstroke, Cummins), BMWs, tractors, imports, engine swap projects, and repair work other shops turn away. Both domestic and foreign, gas and diesel platforms.

## What Makes Foulks Performance Different

1. Owner-operated: You deal directly with Tony, not a service writer or chain-shop handoff
2. Performance mindset: Understands combinations, not just parts lists
3. Wide vehicle range: From drag cars to diesel trucks to tractors
4. Clear communication: Updates, options, and expectations stay in the open from start to finish
5. No-BS approach: Honest work, practical recommendations, no dealership-level nonsense

## How to Get a Quote

1. Call or text Tony at (405) 714-8364
2. Email tony.foulks@yahoo.com
3. Fill out the quote form at https://foulksperformance.com/#quote

## Process

1. Tell the shop what you have (vehicle, symptoms, setup, goals)
2. Get options and expectations (paths, parts, budget discussion)
3. Approve the work (job moves forward with fewer surprises)
4. Stay updated through the build (Tony keeps you informed)