I have a 78 custom that by the VIN says it was an original inline 6 car. I purchased it with a 350 already in it. The motor seems to be sitting uneven and was advised that new motor mounts could fix the problem. Could this also be from the holes being drilled uneven when installing the aftermarket 350 mounts? Someone also told me the mounts were the same as the inline 6. So now I'm confused. Can anyone give me advice on this issue and/or point me in the right mounts?