Hello Shovel fans A few weeks ago I got a late-shovel from 1980. The general condition is wonderful and the part runs really great. The engine is drilled to 1600ccm. (cylinders, cylinder heads, piston S&S). What bugs me is the Mikuni HSR40. When I turn at the gas handle I need power like a bull, it goes in the long term simply too strict. Now I am looking for an alternative carburetor that gets along with the 1600ccm and a little better at the handli ng. Thank you for all the tips. Greetings Shovel-Home Daniel