GM V8 Platforms
BBC, SBC, Gen III & Gen IV
We work on BBC, SBC, Gen 3 and Gen 4 GM V8 platforms, and we tune on HP Tuners and Holley EFI.
Small Block Chevy
Gen III
Gen IV
GM Performance & Engine Services
Parts, Precision & Tuning
From waking up your daily to building a hard-hitting street setup, ATL Powerhouse Performance brings the parts, precision, and tuning to make it happen.
DOD / AFM Deletes
Camshaft Upgrades
Cylinder Head Builds & Repair
Engine Builds & Repair
ECU Calibration & Tuning
Performance Upgrades
Dyno Testing
Tuned On Holley EFI
Ditch The Carb. Get Dialed In.
Ready to trade the carburetor for Holley EFI? We handle the conversion, setup, and professional dyno tuning to bring modern fuel control to your classic, hot rod, or swapped build.
Already running Holley’s self-learning system? That’s a starting point, not a complete custom tune. We dial in fueling, cold starts, idle, throttle response, and ignition timing where ECU-controlled. Get beyond the setup wizard with a calibration built around your engine.
From The Bay
GM Work
