Holley High Flow Power Valve With Gasket. 1 new power valve with gasket size 5.5"HG.. This power valve is pre-owned on Holley two & 4 barrel gasoline carbs. You will receive 1 power valve with gasket This will also fit similar styled Avenger, Barry Grant, Demon, AED and QFT carbs. Please note if you win this item and do not pay within three days for any reason you will be blocked from my store, no exceptions. I only leave feedback after you have left me feedback which tells me you have received the item and are satisfied with it. If you can not leave me 5 Star Rating please contact me so I can try and resolve the issue for you, thanks.