FWD oversteer!

[trackerjack]

My Quantum 2+2 RST is basically a Fiesta XR2 with an Escort Turbo MK3 engine tuned to approx 180 bhp.
It has Spax adjustables with 1.4 springs on front and Spax adjustables with 1.1 springs on the rear. The car weighs 800kg.
My problem is it wants to oversteer and hence feels a bit strange for a FWD car as most understeer.
Because it was made from an XR2 it has a rear antiroll bar and I have considered removing it or adding one to the front.

Any one here know how to set up a safe Fiesta XR2 please?

[trackerjack]

Thanks for the reply I have not taken it to a geo "expert" I use a laser straight edge and the front is set at 1.5 mm toe out and 2deg neg when straight ahead.

The rear is a standard Fiesta beam so I presume factory set but a check might reveal a past accident, who knows.