Welp if that the way you go, toss that ZZP tune in the trash because it's worthless if you go the Northstar and different MAF route.
ZZP will never be able to send you anything worth a salt because they don't have a clue how much air the engine needs. It will need a complete retune of the MAF airflow table from scratch along with WOT tuning and so on. Just thought I'd say that because many don't know what really has to be done.
Do you think I should go for the high velocity tb instead of the Northstar? At what point do you start outflowing the stock tb?
[Daily] 2002 GTP 40th Ann - FSIC, dp+plog, 3.3", ported LIM, HAI, front+rear sway bars, poly mounts, zzp tune for now :/
[Fun] 2012 mazdaspeed3 - dp, 3" intake, FMIC, HPFP, Custom tune, lots of other goodies