Personally I'm all about performance over beauty. Have you thought about gears? Where is that on your list? I would either do gears or exhaust. Idk much about those engines so I'm not sure how well they respond to long tubes. I know my 5.0 loves them so I know the buy is worth it.
You can't lose if you put God first!
1989 LX, 306 with TF top end kit, Anderson N-21 cam, TKO 600 trans with steel splatter shield,full Maximum Motorsports Mustang maximum Grip box, Detroit locker rear end with 31 spline Moser axles. Staggered wheels with Nitto 555 315/35/17 out back.