Alittle drag

i have a 94 cavi, it only has about 35000 miles on it so not much is worn out, but i have been noticing that there is drag on the car when i am trying to go uphill. its not a ton, but it seems that i really have to push down on that gas pedal to get it going up the hill, lol with gas at 2+$ i dont really want to be slamming on my gas pedal. any ideas what the drag could be from?
also, i used to have a high pitch squeal coming from the engine when it was on, i thought it was the timing belt, but one day the noise just stopped. also, none of my check engine lights are on...

possibly your breaks? the squealing could have been your wear sensors.

you think that would have been something a mechanic would pick up on inspection? i had it inspected about 2 months ago, and the noise was there too. he just never said anything about it.