I have a holley 3310 750cfm carb and just installed new fuel lines, manual pump, tank, sending unit, and was running fine and strong till tonight. I was going to dinner and stomped it to impress my buddy. When I pulled in the parking lot just after it felt like it ran out of fuel and was cutting out then shut off. I checked all the kiss methods and all was good. I held the throttle down to the floor and she fired up and ran all the way home (3 miles) just fine. I stomped on it again and ran it hard for say 300 feet or so then It went back to floodin out. Could this be the power valve that floods the carb out?