Edelbrock part 2716 Performer EPS Vortec intake manifold is now available for small - block Chevys with Vortec or Edelbrock E - Tec cylinder heads, the Performer EPS dual - plane manifold is optimized to deliver superior performance with Edelbrock square - bore Performer Series or Thunder Series AVS carburetors. The runner design is tuned for peak torque around 3500 rpm on a 350 - inch engine and it's ideal for power from off - idle to 5500 rpm. Dyno tests showed gains averaging 5 ft - lbs. of torque from 3000 to 4500 rpm for more performance where you need it most. Match with a dependable Edelbrock square - bore carburetor for maximum performance gains. Will not fit under stock Corvette hood.