A Few /6 Questions

Marvel Mystery Oil in the fuel won't hurt anything, and it might act as a fuel system cleaner/lubricant. As far as the ticking, good question...as long as it's not too loud, I would think that would just be lash in the mechanical system. If it's bothersome even in proper adjustment, that's when you go to www.aaamarine.com and buy an aluminum valve cover...which has little to do with performance, and more, I think, to do with cutting down on noise from the valvetrain. I'm far from an expert, so anyone else can feel free to correct me if I'm off the mark.