Choice for EDM solid flat tappet lifter.
I have the Howards EDM lifters in my 318 but haven't run it yet, im hoping all goes well with them.
As stated earlier pull them apart and give them a good cleaning and blow out with compressed air, they looked pretty good out of the box but there was a bit of very fine metallic dust that came out of them during cleaning.
I have also have ran the comp lifters with success in the past but have heard a lot of bad things about comp products since then, so I try to avoid the brand if I can now.