By Richard Petrie
BBC Sport |
Farquhar is the man in form with a hatful of national road race wins in recent weeks and victories at the North West 200 and TT under his belt.
Archibald is a former lap record holder at Dundrod while Britton is capable of winning on the Vitrans Honda.
Bruce Anstey, John McGuinness, Martin Finnegan and Ian Lougher will figure.
Farquhar is keen to break his Superbike duck at the international road races but his best chance of success may come in the Supersport 600cc races.
"The Superbike has been struggling for top end speed and reliability," said Farquhar.
"We have got a new engine in the bike for the Prix so hopefully all the problems have been sorted out and I can compete with the Hondas and Suzukis."
The Kawasaki rider from Dungannon won the Production 1000cc race at last year's event.
 |  There are a lot of blind corners and you have to pick your moments for passing carefully |
Ballymoney's Adrian Archibald has endured a disappointing season and hopes his luck will change at one of his favourite circuits.
"It is the best course in Ireland without doubt and, although I enjoy the North West 200, the Dundrod circuit is more interesting.
"My TAS Suzukis have been prepared immaculately and I am feeling confident."
Like Archibald, Britton will compete in the Superbike, Superstock and Supersport events, and will ride the Vitrans Honda for the first time.
"I am pretty confident of being up there in the Superbike races and the Superstock bike should be good too," said Britton.
"I am starting to like the course but it has taken me a lot of years to get my head round it.
"There are a lot of blind corners and you have to pick your moments for passing carefully."
The other local hope for success, Darran Lindsay, misses the meeting for the second year in succession after breaking his arm.
Much of the attention will be focused on double Isle of Man TT winner John McGuinness, who will have his first competitive outing aboard the Stobart Honda.
The Morecambe rider will be making his third appearance at the 'Prix' and should be a strong contender in all his races.
Ian Lougher, who is a veteran of Dundrod with 20 years of experience under his belt, is enjoying a successful season, and will be real threat.
The Dromore-based Welshman was a winner at the North West 200 and TT and dominated the Southern 100 aboard his fleet of Hondas.
New Zealander Bruce Anstey was the man-of-the-meeting at last year's event, taking a hat-trick for the TAS Suzuki team.
The consistent Kiwi should win at least one race again this year.
The other main contender should be Dubliner Martin Finnegan, who is looking for his first international road race win.
All the competitors will be battling for a share of the record �42,000 prize fund.
Race schedule
Wednesday 10 August: Roads close from 1330 BST to 2030 BST for practice sessions for the Dundrod 150 and Ulster Grand Prix.
Thursday 11 August: Roads closed from 10.00am to 6.00pm. UGP practice sessions followed by Dundrod 150 races at 1400 BST.
Race 1 - Dundrod National Race (5 laps); Race 2 - 125GP/400SS race (5 laps); Race 3 - Dundrod 150 Superbike race (6 laps); Race 4 - Dundrod 150 Challenge Race (5 laps).
Saturday 13 August: Roads closed from 0930 BST to 1830 BST.
Race 1 - Superstock race (7 laps); Race 2 - UGP Supersport 600 race (7 laps); Race 3 - 250 GP race (6 laps); Race 4 - UGP Superbike race (8 laps); Race 5 - Supersport 600 (6 laps); Race 6 - UGPSC Superbike race (7 laps)
MMIX
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