Super noisy valvetrain in my Magnum 5.9

Right, well I hope its not doomsday for this motor, as I really just got it installed.

I did do a leakdown on all the cylinders on the driver's side, and the numbers are identical to what they were when I originally put the motor in.

I think the springs are ok (though I haven't tested them), but they're hughes high performance springs, so i'm *guessing* that they're ok.

Before I changed anything, I was able to localize the noise to the driver's side front portion of the valve cover with a stethoscope. Of course, now it's loud everywhere, and since the only thing I changed was lifters and pushrods, its (theoretically) got to be something to do with the stuff I changed.

I wonder if its possible that I got a set of crap lifters? Though, they sure seem to be working right from observing the motor turn over, and the only time I can spin the pushrod is when the lifters are all the way down.