my 2wd saff has vernier pullys that are adjusted inlet full one way and exhaust full the other i know this is not at all in technical terms but it just seems wrong i have a receipt for bd14 cams that i assume are fitted to the engine would this be why they are like this and also it runs quite lumpy at idle and has a bit of a flat spot when you stab the throttle its hard to explain but its just not right its got new leads plugs dis cap and rotor arm and iv been through the wiring its all ok temp sensors ok tps ok any help would be appreciated