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Builder Series

Builder Series - Carb vs. EFI

Carb Vs. TBI How They Map Circuit-to-Circuit Idle Carb: Idle circuit uses vacuum to pull fuel; mixture screws set AFR. Killshot TBI: Idle Air Control (IAC) sets airflow. ECU adjusts injector pu...

Killshot Series: Common Issues & Solutions

Killshot issue? This guide lists the most common symptoms and the fastest fixes. Follow the short checklists, verify wiring and settings How to use this page Start with the symptom that best m...

Killshot Tuning Guide Chapter 6: Definitions

Check out chapter 6 of the upcoming Killshot Tuning Guide!   Tap here to view the PDF