Genuine Holley OEM part ensures reliable fit and performance
Integrated 12 1/8th NPT ports accommodate most common EFI transducers for flexible setup
Two 6 O-ring boss AN ports provide secure vacuum or boost reference connections
Central mounting design improves engine bay organization and accessibility
Compatible with digital 2 bbl Pro-Jection systems for seamless integration
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Throttle Body Wiring Harness
The Holley EFI Vacuum Manifold is an excellent vacuum or boost reference source.
Overview The Holley EFI Vacuum Manifold kit is designed for those of you wanting a simple and clean solution for plumbing either vacuum or boost referenced sources. This manifold block features 12 1/8th NPT ports that can be plumbed