Hey guys,
thanks for the replies. I would like to note that I am not a mechanic by trade, so please excuse the plain language.
There hasnt been much change. The car hasnt been running, and now is the first time.
The L26 was originally in a 260z I previously had, but had an auto box attached to it. I then swapped it over to a manual, and dropped it into my 240z. The gearbox is a standard 280zx box, and the diff is the normal diff you would get in an auto 71 240z.
When it starts off in first gear and you put the foot down, there is a really high rev, then when you change gears the revs dont drop as you would expect. This occurs in 2nd and 3rd gear. There also doesnt seem to be much response when putting the foot down, not sure if this because of the high revs or what. When I drove my 260z around, it was lot smoother, and a lot more responsive.
Cheers