61x jetting?

[Ottis]

I'm putting a red riva pipe on a 61x (x cases),(x cyl) with a single carb 44 with stock flame arrester and stock head, any jetting ideas, been awhile since I built a 61x, can't remember

 

[Mike W]

Call Paul at LPW. He gave me my jetting specs last year for my square which is your identical setup. I remember after I changed my jetting it ripped pretty good.