Holley Standard Main Jets (1PR) 

All Holley Main jets are flow tested and then stamped with the correct number.

Please specify size required when processing your order

• Standard Main Jet
• 1/4-32 Thread
• Sizes from 50-100
• Fits All Holley Model 2010, 2300, 4010, 4011, 4150, 4160 & 4500

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