[DeTomaso] A/F Gauge- wide or narrow?

[Charles Engles]

Dear A/F Gauge Forum Experts,


            PLEASE provide a dummy's guide to A/F Gauges.  I gather that
they are good things, but questions persist, if you would be so kind.

1) How much do these things cost?

2) Do you have mount a bung or fitting on your exhaust to use one of these
things?

3) Are you mounting these in the dash or just temporary until all the carb
tuning is done?

4) So...you have it installed and you drive around noting that it is too
lean; in the sweet spot; or too rich and adjust the carb appropriately until
it *always* stays in the sweet green zone?   Then, it isn't needed any more
or is it??


           I just figured out what the tach was used for, so help me with
this.


                   Mr. Dummy, Chuck Engles