SKU: 17409461744
Ships within 48 hours · Estimated delivery Sep 2 - Sep 7
1975-1978 GMC K15 400 CID
The EFI modules are available with single 255 LPH and 450 LPH fuel pumps
Glasspack mufflers may be used with slight modifications
Ideal for classes that require cast iron heads that require an unported intake manifold
EFI Crank Trigger Kit - 556-113 no-abs 1975-1978 GMC K15 400 CIDOverview: Holley's EFI Crank Trigger Kit is engineered to provide an accurate crank speed & position signal to Holley EFI systems in the most demanding, high horsepower, racing applications. Crank position is measured every 10 degrees as opposed to every 45 degrees for a standard 4 Magnet, MSD "style" Crank trigger. It is designed for use on early model BBC Chevy applications using a standard ATI or Fluidamper "style" balancer up to 7 1 4" in
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