S&amp,S Cycle Quickee Pushrods for Evolution Motors 93-5120 Larger 2-1/16" bore allows more air to flow for more peak horsepower Recommended for larger displacement engines over 100 cu. in Accepts stock late model throttle cables on all Big Twin models Kits include everything needed for installation on your early Evo Softail including the manifold and air cleaner For models with longer strokes a custom intake manifold may be required