I have a strange misfire in my car, a saff 2wd with 4x4 engine stage 1 with new spark plugs at 0.7mm
When i normal drive with the car there is no problem and when i realy go for it still no problem but after that i drive again normal and then around 2500 revs in 3rd +- 50 km/h it misfires but not all the time just sometimes, when he misfires then it doesn't matter in what gear i'm in.

It's difficult for me to realy good discribe the problem.

Cheers Ruud