Don't know where in Australia you'd get cow magnets. These are put down a cow's throat into the stomach so that any subsequent metal swallowed by said cow will stick to the magnet instead of going through and possibly cutting the cow's insides. I reckon sheep don't use them. You can get 'em at animal feed stores.

Of course Bob and I are joking about these "devices" making a difference in how your engine runs. Save your money for real stuff, like bigger carbs. The one thing these devices really do is make the seller money -- the buyer gives his money to the seller.

Have you seen the inlet tornado? Good for 75 hp.