for any of you guys who want to upgrade your motor. i have a set of Magnum R/T heads #7140 1.92/1.60 with a dual plane intake im gonna list when i hit 25 posts. should be by next wk. anyway these heads my engine builder says are just as good if not better than the EQ Magnum heads. took me only 2yrs to find this stuff. we just cant use it in our asphalt circle track division.