MAF differences?

[peter paul fenske]

>
>   This MAF has only 3 wires; the 305/350 MAF has 5 wires.
>
>   What's the deal with the extra 2 wires?
>
>                     -->   Bob Valentine  <--  
>                    --> ravalent at liii.com  <--
>        "Experience varies directly with equipment ruined"
>
>Hi Bob:
>The two extra wires are for the burn off function not necessary
>with the thick film resistor of the 2.8 MAF. When a 5.0/5.7 is
>turned off, 12 volts is applied to the hot wire element in the
>maf to clean off the accumlated debris for about five secs.
>GL Peter:85 coupe
>