alt.energy.homepower

I've got a 10 HP Kohler generator, and I'd like to install one of the
Natural gas conversion kits on it so that I can run it for long periods of
time if needed. I was wondering if anyone had any experience/advice on doing
this?
We just had a tornado in our town and our power was out for 4 days. The
generator worked fine, but it was a pain in the a** having to put gas in it
every 5 or 6 hours, and having to wait in line at the gas station with all
the other guys wanting to fill their gas cans.
The makers of the kits claim no drop in performance, but when you buy a
"dual fuel" generator they list a lower wattage output when running on
Natural gas than on gasoline.
Thanks in advance for any replies!