[Lokahi117]

Im seeing a lot of people here claiming that the car has pep and power but mine doesnt seem to. but then again I cant compare it since I know no one else who has one. but im struggling to go so seventy pulling a small trailer (700 lbs) small white factory built cargo trailer 5x8. and it just seems like there is no power.
i notice when i tap the gas the car drops rpm from 1000 to about 600 then goes up, almost like a hesitation. im curious what it could be.
also I used cheap plugs, auto lites for 3 bucks a piece, does it really make a difference. this is my first subaru and im loving it but Ive got a lot to learn.

 

[Lokahi117]

I will check on that. and my details are (sorry for not posting earlier)
1997 subaru outback with a 96 outback 2.5l motor. and automatic transmission.
I did just take one of the heads completely apart and changed the intake manifold back to the 97 manifold as the 96 didnt have a spot for my evap canister and that made a check engine light. So while i checked the hook back up pretty closely, I have been wondering about my grounds, though they have never been removed from what I can tell.