I have always loved the old school look on cars just like the old school look on choppers; and I mean true choppers, not the crap that's being passed off today as choppers. Sorry for the short rant on choppers, but anyway, I think side pipes look great. Here is a link to Scampin's 64 Barracuda; I think the pipes look great on it.
http://www.forabodiesonly.com/mopar/showthread.php?t=157090
I do agree with magnumdust; I like side dumps better.