Right i'll try to explain this the best i can! Basically at the minute my car is running pretty shite when feathering the throttle and just 'tootling' around but if i put my foot down the problem seems to disappear. When i first start the car in a morning it idles fine but when first driving off theres like a slight missfire and the revs drop and go back to normal again. When driving along normally at, lets say, 40-50mph in 5th (so revs are just over the 2k mk) the car seems to judder a lot but only when im not applying much force to the accelerator. As said above, if i put my foot down it all seems fine. I also get a lot of juddering when on roundabouts (slower speeds of about 20mph). I've had a compression test done and that came back at 170 (iirc) across all cylinders. Spark plugs are brand new, magnecor leads are new, dizzy is new+ rotar arm. The garage who checked all this for me said it must be because im running on 95ron fuel so i then changed to 99ron and i'm still getting the same problems. After having a look through my service history i noticed the fuel filter was changed only last year so that can't be the problem either. I'm running a BLITZ ecu with a TD04 if that makes any difference. Really want to get to the bottom of this now! Cheers!