Finney opened the scoring against Ramgarhia, Guy Bolsover made his usual contribution with Phil Hardy converting a penalty corner and, as the opposition tired, Gary Ferguson completed the tally.
In the Nastro Azzurro South Premier Anchorians had a convincing 5-2 win away to Gore Court and are now four points clear of Hampstead and Westminster, who surprisingly dropped points to lowly Woking in a 3-3 draw.
Always struggling after conceding an early goal in the opening minute to a Greg Machin penalty corner, Hampstead fought back with goals from Mark Crowley - his 23rd of the season, Will Saxby and Rob Turner before a late equaliser from Mick Colclough gave the Surrey side a point they fully deserved.
Even after dropping two points, Hampstead are seven points clear of third- placed Wimbledon, who won 4-3 at Ashford, and look pretty certain to make the play-offs along with Anchorians. Both teams are very keen to retrieve their National League status.
Gareth Machin scored twice for City with Gys Thieme getting the third as they beat the University 3-0 in Cambridge's Gown v Town match in the Adnams East Premier. Cambridge City, six points ahead of Chelmsford, have, like Norton, yet to drop a point.Reuse content