It depends on a couple things.
1) was the handle well attached ( no slop) when you bought it? If so, consider leaving well enough alone.
2) if you drilled holes to match the handle is there enough steel around the holes near the old hole locations? Mark the plate with a sharpie when the plate is in the desired location. Then remove the handle and see. If the old and new bolt locations are very close, consider shortening the saw plate and brass back a fraction of an inch. ( remove brass equally from both ends to keep any logo centered.)
I suspect what you may have is a replacement to the original handle, which often had just two bolts on smaller saws.