what gear to run for Boost

[Grabberblue_5.0]

OK guys so i need some opinions on what gear to run in my A6. I bought the Vortech V3 kit with comp inlet an the car will be on E-85 with that being said my Factory gears are 3:15 so i was thinking 3:55 or 3:73 any info is appreciated

 

[Angry50]

Most people I have talked to say the factory gears are fine with boost but they have manuals. might be different for autos. to my understanding with boost 3.73 might have traction issues in 1st and 2nd but if you're on slicks of course could be fine. I know with my 3.73 I have traction problems on the street in 1st in 2nd. I have a manual with nitto nt555 tires