Current world champions Australia have been dubbed the favourites despite suffering a shock loss to New Zealand on Saturday in their opening match.
England kicked off the tournament against Samoa, and despite the nervy performance, Tomkins and co. picked up the win.
"We've got everything we need to go there and win, it's down to the players to perform," the 25-year-old told BBC Sport on Friday morning, before the start of the tournament.
"A win in this Four Nations would give English rugby league a boost it needs."
England face Australia next weekend and will be looking to take advantage of the Kangaroos' loss at the hands of the Kiwis.