I am not a mopar expert, but have aquired a lot of drive line parts for the mopars. I am wanting to build a 1930`s sedan keeping the factory straight axle in the front but changing everything else in the drive line to more modern equipment. I do want this thing to flat azz fly when it is done. Here is what I have to work with. A 440 ci eng out of a 76 winnebago motor home, A 440 ci & automatic out of a 67 chrys, 300 land yaht. A 1969 383 bored .030 over, lunati cam and kit 904 heads( fairly fresh ), this engine looks to have been balanced. I have a 4 bbl intake for the 383 and a 6 pack set up for either the 383 or the 440ci. I also have either 4speed A833`s or the early 727 out of the 67 land yaht. I have choice of rear ends from the early chrysler to a 9" ford or the 12 bolt chevrolet. I realize any of this stuff can be put togather to work. But, weight to horse power ratio? Would I be better off to trade some of the big block stuff to a lighter small block setup, or over all will the big mopar equipment have the extra umph to haul the extra weight. I do want to keep the cost down as much as possible. I just do not have any actual experience building anything mopar and have no idea as to how the small blocks perform over the big blocks or vice versa. Should weight even be a consideration with the big block mopars being known as the torque monsters? This project is already under way with the body off and the frame being cleaned, re-inforced and Z`ed. Just keep in mind I do want to go fast. How would you experts advise me to go?

Thank You