"It was a typical FA Cup game," BBC Sport quotes Warnock as saying. "They were like that when I was a kid. They played a strong team. To see Gareth Bale, Aaron Lennon and Scott Parker in that team and to beat them is fabulous because we had a very young side out.
"I thought we took care of Lennon and Bale very well. We scored two great goals and could have had a couple more. It was a fabulous advert for Leeds and the FA Cup.
"It was a great result and we deserved it. Some of our defending in the second half was fabulous. I'll probably open a bottle of champagne tonight and have a few little tipples. I'm sure I'll be able to do something like that. I might even treat myself to a bag of crisps."
Leeds will face Premier League champions Manchester City in the fifth round of the competition.