This test result of having N20 spraying into the MAF that those believing this is a must have their head up their ass.

Taking the stock GM MAF table ( shown in red line ) and plotting the actual airmass with N20 on and spraying into the MAF reported no different then when N20 is off.
In fact even with this stroked engine producing 460 rearwheel HP (590 with N20 on ) the grams per second is no different then what stock reports and shows even porting a MAF does not require hacking the MAF table values in the PCM.

If as others state N20 must spray into the MAF then the actual values would be much different yet N20 is spraying into the MAF yes the grms/second is the same as if N20 was off