Ok thanks tblake ill try adding extra air can't hurt any im going to need new tires for winter anyways these barely passed inspection

. Um no extra weight trunk is empty so is back seat. No subs either hehe at least not for now. When i got the car it had cherry bombs in place of the mufflers so im sure the exhaust is flowing pretty good.
So in the end i guess 25 mpg is going to be fine thanks everybody