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Perfect for "blow-through" carburettor engines up to 1200 HP
By shielding the intake manifold and reducing the heat radiating up from the engine
the Ultra H-Beam connecting rod is designed to satisfy the requirements of the most demanding racing applications
350" stainless steel Exhaust Valve
a bolt upgrade to Custom Age 625 material is available for all Callies I-Beams
Standard Main Jet #41 HO122-41 Flathead Perfect for "blow-through" carburettor enginesStandard Main Jet #411 4 32" Thread, . 041" Hole Size (Pair) HO122 41 122 41 These metering orifices control fuel flow into the metering system. They are rated in flow capacity "cubic centimetres per minute" and are changeable for tuning purposes. The shape of the entry, exit, and size determines flow. All Holley Main Jets are flow tested and then stamped with the correct number.
US$ 148.50
US$ 148.50
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US$ 167.00
