Inliners International Forums General Discussion Vortec 4200 4200 parts - whats needed to help folks use this

I just purchased an 07 4200 for my 53. What is the best location for the motor mount rubber isolator on a 4200 to be installed in a 53 chevy 210? Should it be installed near the frame or the engine. The engine mount is about 5 inches from and above the frame at the crank centerline. A lower location would aid in header design.