Roy Hodgson's side have secured 36 points already this season, leaving them just three points behind Swansea City, who currently occupy eighth position.
And with the middle of the table looking extremely congested, Long sees no reason why the Baggies can't push on.
"It's very tight between 14th and eighth in the table," Long told the Wolverhampton Express & Star.
"It would be very easy to finish in the top 10 and qualify for Europe.
"We've definitely got a good enough squad to do that. We can't take our foot off the pedal now."
The Baggies look good for a strong finish to the campaign after notching three wins from their last five games, including a black country derby demolition of Wolves and a narrow victory over Chelsea that cost Andre Villas-Boas his job as manager at Stamford Bridge.
How do you stay up to date with football when on the move? With http://m.goal.com – your best source for mobile coverage of the beautiful game.