Holley Terminator X Max Engine Control Module - 3.5" Touchscreen - Wiring Harness - Transmission Control - 24x Reluctor Wheel - GM LS-Series 421991 Spark plugs are angled like

Spark plugs are angled like stock O

All hardware included

1983-1992 Chevrolet S10 Blazer

Front Sub-Frame

Holley Terminator X Max Engine Control Module - 3.5" Touchscreen - Wiring Harness - Transmission Control - 24x Reluctor Wheel - GM LS-Series 421991 Spark plugs are angled likeNot recommended for 4x4 applications with electronic transfer cases. Not compatible with 4L6X transmissions from model year 1995 or before due to year by year changes in converter lockup and downshift strategy. Real Time fuel map learn, takes the guess work out of tuning your base fuel table. High Impedance Injector Drivers will safely power most Stock LS injectors, and Holley EFI Injectors. Injector support chart provided in the instructions (Will