Holley EFI 12.3" Pro Dash 553-111 apr 1979-1986 GMC K2500 350 CID

1979-1986 GMC K2500 350 CID

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 5571019

5L V8 1968 - 1969 Chevrolet Chevelle Concours 250/4

5083 056AB

1L l6 1974 - 1979 Chevrolet Nova Base 350/5

Holley EFI 12.3" Pro Dash 553-111 apr 1979-1986 GMC K2500 350 CIDThe Holley EFI 12. 3" Pro Dash is customizable with a variety of gauge and indicator screens that can be programmed to display any parameter you need from a Holley EFI system. Features: Plug and play display support for Dominator, HP, Terminator X & Sniper EFI (Not compatible with Sniper 2)1 Real time ECU tuning allows you to make quick tune changes without needing to hook up a laptop2 Capable of monitoring up to 238 real time values such as RPM TPS