Your max rpm for your big block????

I always liked the 383/440 motors for their grunt(torque), especially for pullin those B-bodys around...never like trying to twist the 440's much over 5500...the 383's we would spin a little higher....always wanted to use the torque and leave it to the small blocks to ring themselves ragged....that was always the beauty of those big cube Mopars ..because we didn't have to twist the hell out of em to make em go...we weren't always breaking/fixing them.The only thing I ever got out of adding big RPM to em' was a lighter wallet.Just my 2cents and you can have it for free(remember..you get what you pay for around here).