The kit includes the RPM Air-Gap Dual Quad intake, two 500-cfm Thunder ... is intended for the '55-86 SBC cylinder heads, while the Vortec manifold (#7526), also in its as-cast finish, is intended ...

This all-encompassing package includes an RPM Dual Quad Air-Gap intake, two 500-cfm ... available to fit both standard SBC heads (like ours) and the later-model Vortec configuration.

A well-designed dual ... Chevy dual plane intake comparison. The collection of manifolds could have been even larger, but we limited our test to the'55'86-style bolt pattern. We bypassed both the ...

While a number of carbureted intakes are currently available for LS applications, Holley recently introduced a trick dual-quad intake for ... we love the original small-block, it has just been ...