IIRC MP at one time had their own head but as it ran out they started reselling EQ heads.

I am going to duck right after I post this, but I think you should be looking at Speedmaster (ProComp) aluminum heads. Or get with Todd Marsh Sasquatch and find out about his baby Sidewinders. The EQ heads are really good but I can't see paying aluminum head prices for iron heads. Maybe I'm just blinded by the shiny aluminum!

R.