rb20 possible maf issue....

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alrighty guys i just got my rb20det up and running... well i finally got the idle issue under control... the idle used to rev up and down up and down....i pulled the iacv off and cleaned it plus i turned the screw in and turned the idle down..... now the vehicle drives but i think the maf is goin stupid on me.. i cant hit boost and the vehicle wont rev past around 3 grand..... i searched and i have narrowed it down to the maf.... i just want to make sure i have the right idea and ima try n clean the maf tomorrow... let me know wat u guys think.....