A couple of thoughts, if your running WFO while racing I doubt you'll see 40+mpg.
Also a #20 pilot sounds a bit small ( 30 or 35 maybe) in my experience. Try going leaner by 2 needle sizes.
"There's a fine line between a skinning and a shearing"
RecycledRS screwed with this post 10-12-2012 at 05:55 PM