Originally posted by maverick
Let us know how it goes when you get to run the engine. I am mainly concerned about having enough back pressure to push the fuel into the engine, as I have heard some Pitts mufflers have problems with this.
I have Bisson Pitts mufflers on a variety of my 2 stroke motors (ST .51, .90 and OS .46) and don't have any problems with fuel draw.
Are you talking about 4 strokes?
Don