You can ask MMR right on this very forum.
From what I understand is that they're a huge improvement.
Getting ready to drop in a fully complimented MMR equipped 5.0
into a '70 Ford pickup.
Truck belongs to a friend and will have a full Gasser style vibe.
Everything about that 5.0 is all MMR sourced and I will get you
a honest answer to your question if MMR doesn't respond.
