No matter what you use I would run the mini starter.Gives you more clearance everywhere and spins so much quicker.

Old HP mopar mag article dyno tested hp man vs shorties vs long tube headers on a stock 440 with no other changes.

The difference from man to shorties was about the same as shorties to full length.Sorry I don't remember the actual numbers.Where the full length shine is low/mid range torque.The shorties were a noticeable gain over manifolds in both.