Edelbrock part 7105 Performer RPM FE intake manifold is designed for high - performance's street 390 - 406 - 410 - 427 - 428 c.i.d. Ford FE V8's with standard 390 - 428 c.i.d., 427 lowmedium - 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.