Proform Standard Replacement Billet Metering Blocks

Replace your existing metering block with Proform's standard replacement billet metering blocks. They are designed for use with all 2300, 4150, and 4160 models, except carburetors with an accelerator pump transfer tube or reverse-idle system. The billet-machined blocks virtually eliminate porosity problems and will improve throttle response over stock "universal" performance metering blocks. The metering blocks maintain the original timed spark or ported vacuum tube and are compatible with standard fuel bowl and metering block gaskets.