Holley EFI HP EFI ECU & Harness Kits 550-603 1993-chevrolet-c1500-esi5448504 1985 Chevrolet K10 Suburban Silverado

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0L w/ VIN G/T/U/H (8th Digit) Description_MKT MSD's engineering team has been working diligently the past year to improve our Multiple Spark Coils for the GM LS-engine platform

the standard adjustable panhard rod (33-1005) is all you need

Description_MKT The control knob mounts to the dash board for easy and accurate tim­ing adjustments up to 15°

Holley EFI HP EFI ECU & Harness Kits 550-603 1993-chevrolet-c1500-esi5448504 1985 Chevrolet K10 Suburban SilveradoLooking for a plug and play kit for your GM LS engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more. Got a stock LS engine? Simply download a base map and you're on your way. Got a turbocharged, nitrous fed LS engine on water meth? This HP EFI kit can control that too! Holley EFI HP EFI ECU & Harness Kits 550 603 Specifications: 10429 Yes 10431 Yes Brand Holley EFI 10423 Yes Category Air and Fuel