Hydraulic Roller Lifters w/LA Block?

Yeah.. I'm pretty sure he said I could keep my current hydraulic roller cam and just use it with solid roller lifters instead. Of course to go solid I'll also need to get adjustable rocker arms and new springs/valve train components so it's def going to be more expensive.

What kind of valve train did you pair with the MRL's?

You were going to need adjustable rockers even with a hydraulic roller as the stamped rockers won't take much spring with out punching the pr through them. Also I doubt there will be much if any difference in springs need to put solids on it instead of hydraulics.