Dirty K&N .. possible.
A year ago I dropped from 113-114 down to 109. after 5 passes and knowing nothing was changed on the car.. I pulled the airfilter and it picked back up. I since no longer run a ram air style filter.
The drivability will change with the work done on the motor. Obviously the MAF tables are now no longer what GM intended. But at WOT.. thats another thing.
Put the car at 20 PSI and get it making the power it should at the correct airfuel ratio.. and work your way up.. if the power starts dropping off.. find out why.
Lots of guessing?
A year ago I dropped from 113-114 down to 109. after 5 passes and knowing nothing was changed on the car.. I pulled the airfilter and it picked back up. I since no longer run a ram air style filter.
The drivability will change with the work done on the motor. Obviously the MAF tables are now no longer what GM intended. But at WOT.. thats another thing.
Put the car at 20 PSI and get it making the power it should at the correct airfuel ratio.. and work your way up.. if the power starts dropping off.. find out why.
Lots of guessing?