yes, I flushed the block, radiator, and heater core seperatly and back and forth untill the water was crystal clear.

 

couple of years back my did this replaced the fan hoses nd flushed radiator and block ,found it to be a orange stuff in the bottom tank of radiator that would not flush out maybe take the radiator out and do a good visual of in sides

 

Thanks for all your help. I think you may be right. I'm kinda thinking that all the orange goop might be stop leak or something from the previous owner. I guess i will have to take the radiator out and check it out