Hello,<br>I have a 1988 760 turbo. WHen I give it gas, the car rev up, but has no accleeration at all. I hear the turbo, and the gauge is alive, but black smoke pours out of the exaust, and it just creeps along. When I lift my foot off the accelerator just a bit, the engine really revs up and switches gears which speeds me up a bit. I have had this problem before, and the mechanic replaced a few hoses, and it was fine, now it is back... Any suggestions? <p>THanks!!