Just be sure to double check the cam towers after they've been cleaned. Most machine shops might not be aware of the cam spray bars. Those should be removed or spend a little while making sure the cam feed line fitting and hex plug at the opposite end are removed and you flush the spray bar out. The pinholes in the spraybar are easily clogged and that'll mess up your cams & rockers in no time at all.
I got a set of nice cam towers from a friend who had them in storage for a long time. I debated whether or not to remove the spray bars. Glad I did. Look what I found in one of them- a big hunk of......... dirt/mud? I heard something rattling around in the tower and couldn't shake it out. So I removed the M12 fittings and that's when I found the chunk of dirt in there.
