I am planning on putting a 440 in my 76 Plymouth Volare Road Runner. I can get motor mounts from Schumacher, I was wondering if anyone has done this and what headers I need to use? I have removed the power brakes and the heater box has been modified. This is a power steering car also. I also have questions about fuel line size, do I need to up grade? This car had a 440 in it when I bought it 12 years ago, but the owner sold it to me as a roller. I installed a small block and have been driving it ever since. Schumacher says that the K-frame mounts need to be cut down but the previous owner did not do that. Is there a factory mount that will work? Thanks for the help!!!