Steve,

If you truly have a Max-10, make sure it is broken-in. They were iron/steel, not ABN. You might receive the needle and venturi for the FP and LA. They might fit, not sure. If not, as stated previously, just wire the venturi open and go fly. The Max-10 is an excellent engine.

Don't be afraid to use a .15 on the Flying Clown. Use some 52' x .012 lines and have a ball.

Make sure you use a low pitch prop such as a 8x4 if you use the .15.

Good luck whichever way you go.

George