Here is an Italian model dubbed the Cobra. I believe it was designed in the early-mid '70s and is a front engine shovel-nose type hydro. I think it was designed around a .40-.45, iI appears this one has a Super Tigre .61 or larger judging by the cylinder head. I have the plans printed and had the intention to build one but life got sidetracked a bit so it hasnt been started.