727 trouble ?

The previous owner did have the engine out last winter ! And I somewhat do remember him saying that he reused the old mounts. You would think that he would have made sure that the mounts were good but you never know I guess. I like your angle! I'll check the fan shroud to see if I can see and scuff marks too. It just seems strange that it only happens when I jump the car like your saying. And I can't say for sure that its 'slipping' , because I'm off the gas as soon as I get that noise anyways.

Thanks again for all the great advice, I'll update results :)