Converting a US spec car to PI (petrol injection) is a bit of an undertaking, even if you have the complete injection system. The gas tank needs a return line, you will be mounting a 100 psi fuel pump in the trunk with associated lines under the car, the engine needs to have the correct head and camshaft...oh, and don't forget to carry a BIG fire extinguisher. The fire extinguisher line, if I recall correctly, came from Brian Feurstenau of Group 44 when asked about converting to PI.
You can achieve the same power on a US spec engine by rebuilding it with standard hi performance modifications like cam, compression and cylinder head work. (Caution, shameless plug coming) or you can install a Moss supercharger kit and blow those PI cars into the weeds!
Robert Goldman
VP Business Development
Moss Motors, Ltd.
E-mail: rgoldman@mossmotors.com