hi stangnet,my names dan i'm new to this forum,and 5.0s also.i need some advice or opinions on which valve covers to use on my new 331 motor,using 1.6, 7/16 stud mount rockers and rpm2 efi intake,i have been told by one person that using tall covers+intake spacer+ cowl hood, would be the correct way, also heard that i can grind a shorter type and will work with stock hood clearance.i'm just at odds at which way to go with this.any suggestions on what brand,type to use would be greatly appreciated. dan