basiclly i was having these problems for a while but have been progressivly getting worse , Got stranded on a country road at 3am doing a lift. i was on my own and all of a sudden the car just conked out and wouldnt start, there was no spark. managed to limp it home, decided a change of plugs were in order, turns out i was right as the old plugs were a right state! well past there sell by date lol. i got a set of bosch super 4's for £12 with a halfords trade card and got em in along with cleaning up the throttle cable as the car has started to rev and speed itself up without me doing anything. the plugs didnt sort the problem however it needed them changed as the old ones were very burnt out and worn. I have a 4EFTE Rocker with the extra breather ontop running into a custom catch can, i was wondering if the rocker cover could of affected the vacuum and caused these problems?? Rocker cover was of my brothers GT Thanks