Edelbrock RPM Air-Gap Dual-Quad Intake Manifold - EnduraShine finish (ED75184)RPM AIR GAP DUAL CARB LS1 LS6 Chevy LS1 LS6, 1500 6500 rpm, w Timing Control Module for 24 tooth reluctor Part Number: ED75184 Get late model muscle of the popular Gen III and the classic look of dual quad carbs. Designed for LS1, LS6, LM7 (5. 3L), LR4 (4. 8L), and LQ4 (6. 0L) engines, the new RPM Air Gap LS1 Dual Quad delivers outstanding performance from 1500 to 6500 rpm. Included with the manifold is an electronic timing module that picks up MAP,