60 miles on the lower quater tank?

i drove to school which is 30 miles there and 30 back and used a quater of a tank. the truck feels nuttless at highway speeds even if i downshift to fourth. it has a 2.7 with 31x10.5s and a 5 speed. i was thinkingthe cat might be clogged and it dosent seem to respond over 3000rpm. any help or experiences would be appreciated. it also has a fresh k&n so

 

Might need to clean the MAF sensor or have a new fuel filter put in. I'd try to clean the MAF first and see if that helps out any.