Hi If ic hmir n Schlachtsierra get how I plan so I want to remove the suction bridge and widen the channels and polish WAs would recommend you for tools to do this and how much can you do about it? Would you like to make the exhaust manifold also? What would a simplified flywheel bring? What success can you expect if you do that? I only read a report from nem Opel what he could get out of it, but he also worked on the valves and everything.