MickJC

I am running an MVVS 91 right now with a BCM Pitts exhaust. If J'Engines has supplied you with one of these please be aware of the fact that it will probably need a small modification for your engine to run right. I have found that the muffler does not provide adequate pressure to the tank. I can back the H/S needle out completley and it is impossible to get the engine too rich! I solved the problem by plugging one of the exhaust stacks with a piece of dowel secured with a very small screw. Don't block the outlet completley or the pipe will fill up with oil. Otherwise, great engine!