I own a 1977 oldsmobile cutlass supreme.  I am about to drop in a 70' model 455 big block with 365 Hp and 500 lb/ft of torque. I am afraid that that much torque will damage the frame.  It has a factory four link 10 bolt rear end.  Im trying to figure out what suspension upgrades would be most beneficial to help support the frame. I will be replacing the rearend but im not quite sure what kind of suspension components will be neccesary.  

We just had a '84 hurst olds. that we installed a rocket 350 w/performer rpm package and posi rear w/ 200r4 . We experienced serious wheel hop with the stock bushings. Also the rear had stock air shocks. I've heard of twisting with that much torque, but you'd need some bigg meats.