[Trexrally]

I have a 3.6 (964) race motor but I need to use a 3.0 case to make the car qualify for the type of events I want to enter. Rather than selling the motor and building up a 3.0 motor from scratch I want to try and rob the 964 motor of everything I can and try to use a 3.0 case. I realise the head stud spacing is different but I wondered if anyone has tried to change the stud mounting on a 3.0 case to fit 3.6 heads