Where can I buy the correct little retainer clip that holds the choke rod to the choke linkage on a '68 4BBL carb? Its a thin spring wire clip. Not sure of the size and I want make sure I get the right one. I was reattaching mine and watched the clip disappear in slow motion as it flew through the air.. Those things are small Also, There are two holes in the carb choke linkage, which one should I put the rod in (from the manifold choke spring)? My old carb only had one hole.