I guess the 5.7 Hemi wins

To answer the question about the door handles I used are from a Dodge Intrepid, ......What you really need to ask yourself is what are you wanting to build. sit down and write down all the characteristics you are wanting....looks, stance, handling,performance, and then what do you want to be able to do with the car,If you are only driving the car on the weekends or to a show every now and then, you might not want to spend the time and money. But if you want to drive every day or drive across the country, then It might be worth it... I will tell you having a New HEMI in an old car you will draw a crowd when you pop the hood....good luck to you and your build....I have all the old suspension that I removed from my car, if any one is interested in buying...makes a big difference over a stock setup.