Louis, read the post below.

The Fox .40 BB (I prefer the lapped piston variety) is a WHOMPING engine. When they're running good...they're running GOOD! This is a superb engine...I just wish Fox would quit D_icking with carbs and move on.

MKX, TN, EZ.....gadzooks!

Spend the time to get it right....you won't be sorry.

Fox fan for life.

(currently have a little Fox .15BB in a plane....it's a sweetie...and strong!)