The mighty HST once upon a time was fitted with a "Valenta" type engine. Screaming jets coming down the track, mighty power, mighty loud. It's true power and glory. When armstrong powerhouse released the Valenta engine sound pack for the HST in Railworks at the time I was very pleased and happy. They never did a followup and the soundpack was outdated. Post Links and videos here to show off the valenta engine in action. The question is where's a good source to get the engine sounds required for this changeover?