Totally Dissapointed!!!!!

:coffee2: Hi, I am building a 340 at this time also. and feel bad for you as this is my first build and have fears also. I took my x heads in and had new guides, seals and seats installed even though they were off a running car when I bought them. The heads I was going to install needed all guides seats and 4 exhaust valves. I also had them install used mopar performance springs with dampers that I bought off ebay, they luckily checked OK, my point is that maybe the guides are leaking oil or the guide seals? If there did you install new valve seals? if one is leaking maybe close visual inspection will show one broken. JUST SPECULATING AND HOPING IT ISN'T SOMETHING SERIOUS LIKE A BROKEN RING. YOU CAN REPLACE BAD SEALS ON THE CAR.
GOOD LUCK,Old man "walt" turning mechanic :pirat: