Back driving for Hitech, the team he drove for in 2004, Walker beat his 2005 Fortec team-mate Mike Conway into second spot.
Others who could not match Walker included this year’s Formula 3 runner-up Charlie Kimball and the new Nissan World Series Champion Robert Kubica, emphasising that the young Jerseyman has the talent to go to the top.
‘It was pleasing to be quickest,’ Walker said.
‘It was also good to be back with Hitech.
Nothing is signed for next year yet, but my aim is to secure a drive with a Mercedes-engined team and mount a title bid next year.’ Hitech and Fortec want Walker in their cars for 2006, but the promising driver needs to find the funds.
Walker said: ‘Funds are the priority now.
I’m working flat out to raise the money necessary to secure a championship-winning drive.
‘Competing in Formula 3 is costly but it’s the recognised stepping stone to F1, where the best young drivers from all over the world have to prove themselves at a professional level.
‘Without the funds I can’t continue and become Jersey’s first ever Grand Prix driver, so I’d love to hear from any Jersey businesses which would like to get involved.’