backpressure? and exhaust fun

[schofiel@telusplanet.net (Curtis)]

> >
> > It's not back pressure, it's the lack of back pressure.
> >
> > The popping noise is unburnt gas getting past the valves and later
> > igniting.

> TB is right about the source of the popping.  I'm not so sure it will
damage
> valves, since the ignition occurs well after the exhaust valve.  It might
> blow out your exhaust system, but I don't think that is a big worry to


I have this 'problem' too. It's very lame. I'm wondering if there is a
solution,
a new/better muffler?