good morning everyone -- trying to decide whether to rebuild a carter yf single (at a cost of about $30) for my 235, or should I upgrade? -- if upgrade, what would you folks recommend? -- eventually, I am going to do a split intake if that matters -- I have the rocker arms off, rebuilt, and looking great -- by the way, the Advanced Auto solvent ($50 for 5 gallons) is a fantastic product -- oh, one more more thing: I know (or think I do) that the yf will have a filer assembly connected on top, but the engine I have has one of those large filter housings (the black one one that connects to the left intake arm with U brackets -- if I am right about the filter attaching to the top, and any of you need the older housing, let me know -- would rather deal here than on ebay -- thanks! chris