well here is the issue, although i have searched for a answer i cant seem to find a solution. so the deal is that my b20a5 will burn a bit of oil under first start up after it has been sitting for a couple hours. or if it has been idling for about 5 minutes at 750rpms then you take off. it will go away after going through 1st and 2nd for the first time. i assume that my valve seals are as tight as a krispy cream around a pencil. so my exhaust ports are loading up with oil and then being burnt and blown into my fart can. so i was feeling like replacing the valve seals. so first do you guys feel like it would help my issue at all or am i just opening up a new can of worms. my real question being about the cam bearings, so without replacing the cams or machining my old ones. do i keep the existing bearings and reinstall them in their current place? as they are already matched.