I got a frame from the dumps for 5$ that I would love to convert to fixed gear but it will need new drops. How difficult will it be to get the dropouts to perform correctly. It is a 4130 steel frame. Would traditional horizontal drops be better than track drops? My uncle has a torch and could more than likely do the welding.
Henry James' single speed conversion dropouts (4130 steel) are HERE (scroll to bottom of page), and installation instructions are HERE. If you're going to make a fixed gear out of the bike, I'd recommend using single speed conversion dropouts (horizontal, opening at rear) like these. Forward facing dropouts are for ease in installing rear wheels on bikes with derailleurs, but that's not an issue on single speeds.