Got a stage 3 2WD saff and went for good 100 mile drive yesterday!! Was running bang on all day with no problems. Was driving home and got stuck in a bit of traffic...as I was sitting there i started to see a very little amount of smoke coming out of the vents nearest the windscreen. I pulled over popped the bonnet and saw nothing!! No smoke, so set back on my way, started to smoke ever so slightly then stopped!! drove home (another half an hour) and nothing. Drove to work this morning....nothing!! it defo was'nt over heating!! Wierd!!!!

Any advice would be much appreciated!!