Request to inspect the heads and the top of the pistons for yourself...
It's an O-ring, you don't use RTV sealant on O-rings. Nor do you use it on head gaskets. Where ever you learned to put RTV on everything...unlearn it.
Are the paddles aluminum or CF?
On 5.7's with MDS, the MDS lifters themselves just don't pump up enough at idle. That is what you are hearing. It's normal...
Here's my take on the bumpsteer (from another thread on LX): "...The Pedders kit raises the steering rack ~5-7mm (0.19-0.27”) straight up,...
The rest of us (in the 1000's) who are not in a position to attend...
<sigh>
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