Adjustable Rocker Arm Help....

I agree with demonseed. Lifters should not bleed down like that and be so spongy you can push them down by hand. And they shouldn't clatter when you start it up either. 3 yrs. ago when I first rebuilt my 360 I put a Comp XE274 in it and had the same problem. After 150 miles 3 of the lifters decided not to pump up anymore at all so I took it apart and called comp and they sent me a replacement set under warranty. They worked great for the first 500 miles then started bleeding down after it sat and you could push down on the lifter right after it was ran. Another 100 miles and 2 of them would no longer pump up. That got old real fast. I pulled the Comp set out and put in a Lunati 60404 cam and lifters and haven't had one minutes worth of clattering out them in nearly 4,000 miles. You can't push them down after it was ran either.