The Granatelli MAF is calibrated for use without a screen if it didn't have one in it to begin with. There are a lot of aftermarket MAFs that don't have screens. The factory MAF is calibrated for use with a screen.
The Granatelli MAF is calibrated for use without a screen if it didn't have one in it to begin with. There are a lot of aftermarket MAFs that don't have screens. The factory MAF is calibrated for use with a screen.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709