Originally Posted by MotoGod

Sounds like it could be a lean bog on the HSN, or too rich of an HSN. Does it completely bog down like it's not getting fuel...or does it kind of rev up and down like a yoyo almost like it's hitting a rev limiter kind of thing?

It could be a host of different issues of course...and without hearing it or seeing it....it's tough to tell.

Originally Posted by neobart

When in doubt, richen it. But I will almost bet my reputation that it's too lean on the HSN.