Idle is perfect - but when driving or even just slightly loaded up (park brake on, in gear, let clutch out a bit) - it becomes quite rough, and makes a fair racket.
fault appeared suddenly at the traffic lights last week.
have already done following
new plugs & leads new distributor checked compression with thumb (yep - very rough test) in each cylinder - seems ok no broken valve springs spark on each cylinder ok
any ideas on what to check next ??? Cheers.