you can make that horesepower with either of them, the question is budget.... btw you do realize if you go carburated, then with that kind of horsepower you'll be happy to get 10mpg... thats the reality of a muscle car... also, no swap is a weekend swap unless you've got a lot of practice and know your car in and out.... realisticaly you're looking at a good week if you have the time and the right parts