While a Z bend will work in many cases, it can also be a source of problems for two reasons. First, it can cause RF interference (metal to metal contacts rubbing or vibrating) and two, it is soon to be a sloppy connection as the holes are wallowed out by the poor fit between the Z bend and throttle. You will be much better off with a nylon clevis or a ball joint connection. If a slight angle between push rod and throttle arm, the ball joint is preferred.