I have a question about putting this motor together regarding the pushrods and valves opening.

Ok, so I finally measured very carefully and I am installing pushrods today.

I ended up using a thin head gasket, so my “zero lash” length for my pushrods was 7.543.

According to Comps website, I could calculate .020 - .070 preload with my hydraulic lifters. (The lifters and pushrods are both Comp)

I ended up going with an even number at 7.600 for pushrod length.

However, when I tighten down the rocker arms, I can see the valve opening. This happens on the valves that are supposed to be closed (the cam lobe is on the “closed” side)

These cam and lifters are used previously (together) and so I am wondering if I just need the lifters to “bleed down” ?

What am I missing here? I hate to button this up and have problems when I first fire it up. Please help

Eightlitermopar