[Gmecm] runing two MAF meters

[frederic]

> I would guess two MAFs would require some pretty funky air cleaner ducting; 
> an example would be two air cleaners ducted through two MAFs into a Y into 
> the intake, or perhaps two air cleaners/MAFs, each one plumbed into half the 
> engine?

Two MAFs would be useful if you're plumbing a pair of turbos - one MAF per 
side.  Even if you use only one MAF to measure half the airflow, having 
the second maf "in the way" keeps the restrictions approximately equal.