Anyone have experience setting up the valvetrain on gt40p heads? Im running a TFS1 cam, scorpion 1.6 rockers and I have what sounds like a noisy lifter with some vibration. The valvetrain is VERY noisy... you can literally hear the rocker arms...considering im running a full exhaust with no cats and dumps... this is crazy! So, Im going back in... The car runs solid at WOT...but im sure there is more in it. Anyway.. has anyone noticed a particular pre load adjustment with these heads?? I have always just got the roller tip in the middle of the valve stem and tq. to spec... and its worked for a while... but considering the current issue... Im surfing for answers. Thanks.