Here's a helpful reference when selecting an AMC V-8 intake manifold. Written by Tony Zamisch it covers all but the Air Gap (which wasn't available at the time of writing).
For what you're looking for you may like the Performer or the R4B. BTW: The Performer is much easier to find.
Let us know what you select and how you like it.
By AMC World Clubs West Coast Representative,
Listed below are the aluminum intakes that were available from the dealer, and aftermarket sources over the years for the AMC V/8. There were some obscure and experimental manifolds from Traco, Kaplan, Penske, and Enderlie/hillborn, none of which went into production. I also have some cool info and experience with blower intakes and fuel injection manifolds. Manufacturer, manifold configuration, RPM range and application: Edelbrock R4B:
Dual plane, single four barrel - 1500 to 6500 RPM - 68/69, 70/up
Dual plane, single four barrel - Off idle to 5500 RPM - 70/up
Single plane, single four barrel - 3500 to 7500 RPM - 66/69, 70/up
Dual Plane, single four barrel - off idle to 4000 RPM - 70/up
Edelbrock "STR-11" Cross-ram
Single plane/open, cross-over, dual quad - 3500 to 7500 RPM - 68/69, 70/up
Edelbrock "UR-18" Tunnel Ram
Single plane/open, dual quad - 3500 to 9000 - 70/up
Offenhauser "360 degree Equa-flow"
Open plenum/divider, single and dual four barrel designs - 3000 to 8000 RPM - 66/69, 70/up
Offenhauser "360 Degree Dual port"
Dual plane open/dual port - 2000 to 6000 RPM - 66/69, 70/up
Holley "Z" Series
Single plane/divider - Off idle to 4800 - 70/up
For more information on these or any other V/8 and 6-cyl manifolds, blower intakes, etc, call me. I've used them all at one point or another. Lots of stories to tell. Remember, an intake manifold is only as good as the cam that you use with it. Other factors also apply.
By the way, the casting number for the standard (not Machine) 70 360/390, 71 360 cast iron 4-bbl intake manifold is #3195532-C. Casting numbers ARE NOT the same as part numbers. What's in the parts books are PART numbers. Tony Zamisch California Classic AMC, Inc. (619) 423-0364