This award winning design incorporates the same race winning technology thats been used by Edelbrock competition intakes for years.The air-gap design features an open air space that separates the runners from hot engine oil resulting in ac ooler more dense intake charge for more power. Performer RPM Air-Gap manifolds are ideal for street performance from idle to 5500 RPM.Made in USADesigned for 1975 and earlier 396 or 502 big block Chevy engines with oval port heads. This manifold includes rear water outlets two distributor clamp locations nitrous bosses and accept all late model alternator and A/C brackets. The heater ou tlet boss is angled for proper fit over the valve cover. The temp sensor boss clears all water necks.
