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• Application: For Holley 4160 Model carburetors - 750 CFM- 3310, 80508 - Dual inlet single metering block.
• Measures 8-21/32" Center to center
• High flow desing with 3/8" Diameter tubing

• Application: For Holley 4150 Model carburetors - 9-5/16 center to center
• 390 CFM -80507-1, 80507-2
• 600 CFM 4776, 80145, 80540-1, 80575, 80776
• 650 CFM 4777, 80541, 80542-1, 80777, 80783
• 700 CFM 4778, 80572, 70778
• 750 CFM 4779, 6109, 6709, 8156, 9379, 9645, 80528-1, 80529-1, 80535-1, 80573, 80576, 80779
• 780 CFM 9188
• 800 CFM 4780, 80574, 80780
• 830 CFM 80509, 80511-1, 80785, 9381
• 850 CFM 4781, 8162, 80531, 80781, 9380, 9646
• 950 CFM 80496-1, 80498-1, 80577
• 1000CFM 80513-1, 80514-1
• High flow desing with 3/8" Diameter tubing