keep in mind you are gonna have to CUT the maf wire to the ecu. from MAF>safc>ecu
like Zac said, do a continuity test and locate the correct MAF wire.
not sure of the IN/OUT settings for your application, i used 4/4 for my rb and a friend uses the same for his sr. unless your maf is from another motor, i'd start with 1:1
google the installation manual...its available on a couple sites readily.