Hi I'm a mvvs 160 glow.
I'm having problems with the Walbro carb. I cant get the right settings and the engine quits al medium range of RPMs.
And I have a mvvs tuned pipe and mvvs exaust and I don't know the measure of the exaust to sintonize the tuned pipe. I'm using an APC 16x10 @ 8160 RPM and I believe that are not enought for these engine and tuned pipe.
I'll wait for your answer.
Thanks a lot.

Sergio.