Ok, so I changed the valve guides, adjusted the valves, overhauled my injectors, adjusted the valves, flushed the power steering, flushed the SLS; an she still smokes.

Compression after a 3 week soak in Mystery oil seems to have dropped a little; but the car is more responsive......after I fix the exhaust and drive her about 50-60mi we'll see if things settle in a bit more.

What might I have missed.....