A few people have advised me to cut one of the wires on the amal valve and join them in to a switch inside the car.

Apparently this will lower the boost level allowing for more traction in 1st and 2nd gears making it easier to floor it without spinning too much.

The switch can then be turned on when higher up the gears returning the boost level to normal.

Is this true, is it advisable?

Cheers
Will