I concur that the carburetor engines perform less as well than their fuel
injected
counterparts.   However, some of the later carbureted engines came with
injectors
built into the carb for fuel delivery which were computer controlled.
These were somewhat
better at dealing with the altitude changes.  Certainly not as good as the
fuel-injection.
They also made variable advance distributors which also adjusted for
altitude as well...

Just more data points...

Steven
91 Westy

On Wed, Jan 11, 2012 at 9:53 AM, Don Hanson <dhanson928@gmail.com> wrote:

>   There is a significant loss in power from any internal combustion engine
>  A carbed motor loses power two
> ways in that there is less air to burn stuff AND since it doesn't adjust to
> this...the air fuel ratio gets 'out of spec' and it runs rich, further
> losing power that way.
>
>