Hi Guys,

My LHS has a NIB older MVVS 49 Stunt (RIRE) with mini-pipe/muffler (approx. 1 inch dia., 4 or 5 inches long).

What are the real differences between this older engine and the current MVVS 49 Stunt (FIRE)?
Is the current engine really any "better" for Control Line Stunt than the older design, other than the obvious difficulty of access to the rear venturi for choking?

Thanks for the info.