Edelbrock Performer RPM Intake Manifold for 390/427/428 Mustangs.
Designed for high-performance street 390//427/428 Ford FE V8s with standard, low/medium-rise or Edelbrock Performer RPM FE heads. The dual-plane constant cross-sectional area design builds low and mid-range acceleration while optimized runner paths make exceptional top-end horsepower. Has provision for adding the PCV or breather flange at rear. No exhaust crossover passage.