|Carburetor Recommendations: Edelbrock Thunder Series AVS or Performer Series carb, 500 cfm.
Installation Notes: Uses LS1/LS6 style individual port o-ring seals. Crankshaft sleeve #HP3795 and
Flexplate #HP4004 is recommended when using a TH350, TH400 or 700R4 on a LS1; these items are
available through Hughes Performance retailers or you can call Hughes at 800-274-RACE.
Manifold height: A-5.05", B-5.64"; Carb pad height: 5.35". see A/B Measurements. Port exit dimensions: .98" x 2.72".
Note (A): LS1 Timing Control Module #91238 works on LS1 24x reluctor wheel (crank trigger) applications only; LS2 applications with 58x reluctor (crank trigger) requires MSD #6012 ignition controller. Please contact MSD tech for details (915) 855-7123. LS1 (24x) applications can be recognized by the rear mounted cam position sensor (black in color), while LS2 (58x) cam sensor is mounted in the timing cover and is gray in color.