Spot on Tom!!!
To add to that, ive not modified my motor mount at all and can run 5.5T with 21/87. You have to be careful how you mesh it obviously but all you need to do is put down on a flat surface and make sure you hold the motor in the furthest position away from the spur and tighten the screws down.
Works fine and the mesh may seem to only have a tiny gap but its enough and has worked fine for me.
I tried the 81t spur few weeks ago as a trial...........jesus loads of top end way to much but at Southport i found it was picking up way to late on the straight with nothing really out of the corners either...no punch etc.
It takes the drivability and fun out of the car and makes you want to push it more to get the power out of it. On top of this it was running very warm!!!
Still runs quite warm with the 21/87 and 5.5t but no termo cut off even in 30degree heat few weeks ago.
Very good car indeed but a B44 still seems better!
