well back on topic

...i tightened everything up and it sounds great buuuuuuuuuuuuut, no difference. maybe a tiny bit back. its still the same. i cleaned the MAF, changed fuel and PCV filter and anything else i could think of. the only thing left is try new O2 sensors but i have to wait a week for my buddy to get his MILS so i can take his back O2 sensors (if anyone knows they fit or not). any more ideas will be taken into consideration. thanx a ton