[mwebb]

...."By blocking the air to the MAF you are changing the calculation for load so it will read lower and increase timing that will help in mid-low load situations but if your timing map was close to the point of knocking in the high load area it can cause problems. ".....

no
now
pay attention

if you "block" airflow to the MAF sensor then the MAF sensor will
correctly report the reduced amount of air that is does
receive

nothing will change
timing will remain correct load will be correct for the amount of air measured which will be the amount of air that the engine actually receives.

see my previous posts in this very thread for more text on the topic

stop this
it makes all of you look very silly