Solid Engine Mounts, 408 in a 71 Dart..thoughts?

Running a fairly radical 408 with lots of cam in 71 Dart. Currently have regular engine mounts with torque strap. Problem is the engine shakes around a lot and the header clearance is very, very tight. Shiny new ceramic TTI's, and I don't want to chew them up. I have a set of Moroso solid mounts and am considering their install. Car is 90% street at this time. I have never run solid mounts before. I will be making a custom shroud for the fan soon and want to have some close clearance on it, but don't want to eat it up also.

Appreciate your thoughts! Thanks........