Does anyone have experience with actual numbers here. I have a BHW that had failed and could really use a refresh but is really running pretty nicely in the meantime. Its producing a lackluster 10 pounds of oil pressure though when hot, which is not the end of the world but I'm wondering what level of improvement i might get out of the BRM sproket and chain. I know its a question of flow and impossible to predict actual numbers here.... but does anyone have comparative numbers on a known engine? Seems like it could be a cheap upgrade to add whilst I source and build another engine.