'86 360 GLE Inj. prob (diff to describe)

[pettaw]

difficult to describe, but basically the engine seems to be holding on to its revs too long, or longer than any other car I've driven.
For those of you who don't know the history of this car. I got it about a month ago with duff electric windows, sunroof, etc etc etc. Basically got everything working apart from the gearchange which is lying over to the right, so that 5 is very difficult to engage without really bending the plastic shroud, I've replaced all the linkages and the bracket at the front as well. Any ideas on that would be appreciated. I do know that some muppet replaced the diff and g/box about three years ago. Could it be the wrong box in the car? Also there is a slight bump-bump-bump noise at around 30 mph goes above this and below it. Related to road speed and not to gear.

Anyway I digress. My main problem is that the engine seems to be holding onto its revs too long. I had to replace the injectors and clean all the gunk out of the AMM, TP etc etc. to make the car come anywhere near the correct CO content. Now tickover is perfect. Anyway, the engine holds onto its revs for a long time and makes gear changing difficult as you've got to wait for the revs to come down again to engage gear smoothly. I think I've adjusted the TP to the correct spec, but is there a better way to check the adjustment rather than ramming a feeler gauge up the gap and seeing if it binds or not. FYI if I put the black adjuster all the way in I get about 600 RPM and the throttle butterfly switch has been confirmed as working correctly.

Sorry for the long post. Any suggestions would be welcome.

Andy