My Homelite 30 that still looks like a Homelite has a opened up muffler with two 1/2" outlets and the "28" carb. Walbro WA-167

It turns a 18-8 at 7400. It idles about 2200.

There are no other mods. I bought it as a John Deer short block. The flywheel is of unknown origin from a junk box and the Walbro ignition module was purchased from a model boat source.