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		Proform, Billet Metering Blocks, Holley 4150 Race |  				
	 
	
		
	
	
	
    
	
			 
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						Proform Billet Metering Blocks 
CNC machined from solid aluminum. Virtually eliminates porosity problems common to cast metering blocks. Will not warp. Features changeable idle feed restriction. Includes all necessary gaskets.
                        
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