This is an interesting one. I haven't come across an exact match or frames with aspects that would definitively clinch the id, so this is gonna be a best guess.

First off, the lugs are Haden Concorde C301, which would generally eliminate Japan as the origin:






You don't see these Concorde lugs too often out there, and they seem to mostly appear on British and American frames. The number that was initially mentioned was a possible match to a few makers (including Witcomb of London) but looking at the size/font and how it's stamped (somewhat unevenly), I'd eliminate Witcomb (plus the frame doesn't look as nice as theirs usually do):




The guess I'm going to go with here is Romic. Aspects that are consistent with Ray Gasiorowski's work:

* Frame number (1063722178) format, location and stamping. The Romic numbers from this period (76 to early 80s) were 9-11 characters long, stamped across the bb shell, pretty much never perfectly lined up:






* Haden Concorde lugs: Ray's price/spec sheet for 1977 shows all 3 models being built with Haden lugs. While Ray used all sorts of lugs over his career, if the mystery frame was made in 1978, it seems likely that he would have still been using Haden lugs at the time.



* Overall style seems to match Ray's work (according to someone who worked at his shop: "We're building bicycles here -- we ain't building jewelry").

Even though the pics aren't the most detailed, here's a 1977 Model 75 owned by bf member vtchuck that comes close to the mystery frame:








If this frame is in (or came from) the Houston area, that might give this guess a bit more weight.