practice is all i say, cause im getting constant 2.3's and a best 2.2 in my auto, everytime you line up try something different i did however took out just a bit of air out my tire, but a very very little, powerbreak at different RPM's (mines 1.8K-2K)

 

Mid 80s trap is pretty bad, should be pretty close to 90. Your car is obviously down on power. Take care of the suspected bad cat and you should do a lot better.