PUT some NOS into it then you will win!

I have a similar powered FRST to yours with a quaife diff I think it would be very tight.

Your car is about 760Kg you 70KG ? petrol half tank 20kg = 850Kg so you are looking at 186/0.850 = 219Bhp per ton and 196lbft => 265 NM

He has 220Bhp but weighs 1.170 tonne (add 90kg for him and fuel) so 174Bhp per tonne and 206Nm

so you have the better power to weight ratio and torque figures he has traction control etc.

If you can get the power down you should win but you need to get it down quickly and have the turbo spun up otherwise you will lose! - good luck don't let us down!