Ideal for a wide variety of small block and big block engines, Features annular flow primary boosters to improve off idle and cruising performance, This 650 CFM carburetor has a square flange that allows it to be fitted to many different intake manifolds, It comes with: Metering Jets - Primary .101, Secondary .098; Metering Rods - .070 x .037; Step-Up Spring - orange (5" Hg), The annular flow helps eliminate any flat spots that may happen when the carburetor transitions from idle to full throttle.
