Lifting 550

I just bought a MD-XP BendPack lift, assembeld, it is a great looking machine. The question I hav how to find the center of the gravity of my 550 maranello in the middle of this lift. Where is the center of the gravity. The front part of the car is heavier because of the engine weight. The manuael says. The wheel base is 98.43". The distance from center of front tire to the front bumper is 43.2 " and the distance from center of rear tire to the rear bumper is 38.8". Shall I assume the center of wheel base as the center of gravity. I am afraid the car tips over to the front as the result of engine weight. Any comments. Thanks