Sub frame connectors

Thank you for responding! No I am not building a replica, my car is a coupe, but I am building a small block with a roughly 500-600 hp. I was just wondering if the factory Hemi cars had connectors since the HP was probably in that range. The car is about to get painted and thought this might be the time to fabricate connectors and move the rear perches in-ward. Any suggestions on sub-frame connectors and perch suppliers?