Exhaust System on '67 barracuda

I wasn't sure what category i needed to post this under, so i figured General was good enough for now and will get me heading in the right direction.

I'm building a '67 Barracuda with a 273 commando and we're to the point that i need to start thinking about muffler/exhaust system. I don't have headers, i still have the exhaust manifolds on it and we want the exhaust to come out just in front of the back tires.

I've been getting a few quotes here and there and I am thinking about getting flowmasters put on, I don't know much about what else is out there and this is the exhaust system my dad had on his car. so i figured i would stick with what i know.

Anyway, I wanted to know if there is room to put that type of exhaust system under the car. one shop that quoted me said there might not enough room.

Is there anyone that has flomasters strapped under their car or are there any suggestions as to what i could get instead?


Thanks!

Emily