KISS...
Do as the man mentioned about the Buick's. I've got a Grand National and a Cobra. Both use a simple Rachet strap. Its good for 800lbs you mount it on the drivers side (something strong) I used a empty bolt hole on the rear of the drivers side head. The strap went from there to the frame. Simply ratchet it as tight as it will go and then forget it. Every time I change the
oil I check that the strap to see if it needs another "click". It never does. With the strap method you don't have a "mechanical" connection so no vibration gets from the motor to the frame and you...