The new plan

[evilC]

As I see it:

1) Significant lowering - Speedo error 21% (read high), undergeared by 12 1/2%
2) Medium lowering - Speedo error 16%, undergeared 6%
3) Moderate lowering, nose down, rear tyres too wide - Speedo error 14%, standard gearing.

Unless you raise 1st/2nd gear with option 1 that vehicle will be a PIA as it will be effectively have only 3 gears, 1st being a granny low gear. 2nd gear will be a little too high to take off comfortably although reasonably possible. Option 3 provides too wide a tyre on the rear unless you've got in excess of 100bhp. Of the 3, option 2 is the least problematic although like the other two you will need to correct the speedo.

Clive