So im getting some oil accumulation on the right bank where the PCV lines plug in the head. Ive replaced the PCV before thinking the ball and spring were clogged, im not burning any oil even at start up there is no appearance of blow by. You guys think a compression test is in order? I could be wrong with the blow by but what could cause this? I have a 2004 WRX it is "lightly" modded Exedy clutch, Accesport PDX tune 17.5 PSI, up-pipe and turbo back, K&N panel filter, walbro, and a Greddy full recirculating blow off valve (I know it was free). Any help would be appreciated thank you.