[decooney]

Chaplin,
You'll want to measure your ERA as compared to the Unique setup mentioned. Different height provisions. The motor in my Unique sat 1.5 to 2" lower and 3" back further than my current ERA; so a shorter filter is in order for your ERA as to what is mentioned above. You can also trim the lower base unit on a 9" to gain another 1/4" or so/ May need to trim a notch for the float boal screws and your base plate will be indexed from there on.

I have the top and bottom from K&N now and trying to squeeze in a nother 1/4" height. Very close. You also need to watch the top of the air cleaner to scoop clearance during motor torque. The motor on the ERA sits over just a bit, so the top is not dead center with the scoop. You can use small blocks of wood to test the heights. Use a flashlight to look in into the scoop with the hood closed. Can't check now, but I think mine is 2.75 tall now, trying to go to three if they still make the 3" high. Not sure yet about that combined with the K&N top yet. I'm running no carb spacer, but 2 alluminum separators and 3 gaskets which adds 1/4 too on top of the Edelbrock Performer FE intake.