Gary Setchell is urging King's Lynn Town's supporters to add extra fuel to their drive for the play-offs by packing The Walks to the rafters.

The reformed Linnets' 250th league game arrives tomorrow when they welcome one of their promotion rivals Hungerford Town for a potentially season-defining fixture. Lynn sit seventh in a tightly-congested Southern League Premier Division, just three places and two points behind their weekend opponents. A victory will seriously strengthen the Linnets' top-five ambitions and Setchell is desperate for his club's fans to start playing their part in what, only a few months ago, seemed an unlikely promotion push.

The fired-up boss, and general manager, of Lynn said: 'I want 900 here tomorrow. I want 1,000 the Saturday after. If we were 14th I couldn't be asking for that.

'I'm not talking from a general manager's view or a revenue view, I'm talking about wanting my players to experience for these last six home games 1,000 people at The Walks. We had 1,000 against Holbeach on a Boxing Day four or five years ago. That was nowhere near as big a game as what we've got tomorrow. Coalville, we had over 1,400 here in October (2012). That was nowhere as big a game as what we've got now. We're on the verge of making the play-offs.

'We had good success but we've had two years where it's been steady and then slow. But this season we've got a real opportunity – that might not come around for another year or two. We've got to grasp this and make it really difficult for the opposition.

'We talk about King's Lynn being a sleeping giant, a big club, one of the super powers of the Southern Premier support-wise. Well we've got to show that now.'

The Linnets have enjoyed two promotions since being reformed in 2010. But last season they almost lost their place at Step Three of the non-league ladder, avoiding relegation by just three points.

A switch from the Northern League's top-flight, set about by the FA's annual summer shake-up, to its Southern counterpart was widely embraced by Lynn and with just 11 games to go, six of which are at The Walks, Setchell has his eyes on a dream end to an improved term.

'I've played here when the fans were getting behind us back in the old days, when there was big games and big atmospheres,' said Setchell.

Lynn's biggest home league gate this season saw 816 people witness a deserved 3-0 Boxing Day defeat to old rivals Kettering Town.

Setchell added: 'A big crowd does make a difference. We can still generate that. We've had it here over the last five or so years, sporadically. We can get it here this weekend. It would be unbelievable to get 800 to 900 here, get everyone right behind the team. Let's have a real go.'