got a slight misfire on saff when you plant the throttle at low revs (when you would normally want to change down a gear), a sort of hesitation. But its fine when it comes on boost. Also is lumpy on idle and jumps about a bit when holding say 2500-3000rpm. Fuel consumption's got worse as well, smells so rich!!! Only change coil, leads, plugs, cap and rotor arm recently....