The Oil Analysis Company | Home Page | Oil Sample Kits | Weber Carb Parts | Chemicals | Porsche Posters | Contact Us | FAQs | Shopping Cart | Links Page | Links Page 1 | Carb Tuning | Security & Company Info Venturis - Main $90.00 Select Size ----------- 28MM 30MM 32MM 34MM 36MM Select Carb Size ---------------- 40IDA 44IDA 46 50 If your Venturi is not the proper size your Porsche will never run at it best! $90 gets a set of 6 venturis -select the size below!  The photo shows the main venturi (67) and the secondary venturi below. Related Items Here are some products that may also be of interest to you: • 3 Barrel Linkage Kits • 3.6 Intake Manifolds • 911 Intake Manifolds • Acc Pump Body Cover • Accel. Pump Spring • Accelerator Pump Diahragm • Air Adj. Screw • Air Horn Studs • Banjo Bolts • Banjo Bolt Washer • Banjo Gasket • Carb Base Gaskets (6) • Cup Washers • Emulsion Tubes • Float Level Gauges • Floats • Inlet Discharge Valve • Fuel Bars with AN Ftg • Fuel Bars with Hose Barb • Fuel Filters • Fuel Pump • Idle Jet Holder • Idle Mixture Adjusting Screw • Idle Adjusting Screw • Jets • K&N Watershields • K&N Vapor Kit • Manifold Gaskets - 12 pack - • Main Jet Carriers • Mixture Screw Spring • Needle Valve • O-Ring • Plug, Needle Valve • Pressure Control Kits • Pump Body • Pump Studs • Rebuild Kits - 3 Barrel • Rebuild Kits - 2 barrel • Secondary Venturi's • Shaft Bushing • Spacer Kit • Synchrometer • Top Cover Gasket • Venturis - Main • Velocity Stacks