51 bolt, the distributer does move when engine is revved at idle. As far as I know, there's no other vaccuum leaks...not much else on there that is run with vaccuum. I believe the tank was pretty much empty when I got it, I put in 20 liters of fresh premium, only to find out the fuel gauge doesn't work. Now I'm second guessing myself, ha ha...could I just syphen it all out?
