Description
If you’re running a Holley 4150 carb on the track or in competition, fuel metering precision directly impacts your power curve and consistency. This Proform billet metering block replaces the stock unit with a race-calibrated design that tightens your air-fuel ratios and eliminates tuning variables. CNC-machined from billet aluminum and anodized purple for durability, it’s the kind of bolt-on upgrade that separates dialed-in builds from guesswork.
- Billet aluminum construction
- Purple anodized finish
- Race-oriented calibration
- Holley 4150 compatible
- Gaskets included
- Direct bolt-on installation
- Improves metering accuracy
- MPN: 67150C
- Sold individually






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