Holley EFI 12.3" Pro Dash 553-111 apr 5L V8 1968 - 1969

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

4 V8 1968 - 1973 Chevrolet El Camino 307/5 V8 1968 - 1973 Chevrolet C10 Pickup 307/5 V8 1966 - 1969 Chevrolet C10 Pickup 327/5

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

Stainless - TRA0009SS

6L V8 1977 - 1978 Buick Regal 305/5L V8 1968 Chevrolet Chevy II 307/5L V8 1958 - 1959 GMC FM350 337/5

Holley EFI 12.3" Pro Dash 553-111 apr 5L V8 1968 - 1969The 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