What are the drawbacks of an F Body?

I would like to have a Mopar for the street on a tight budget. My ideal would be a 68 Barracuda Formula S Fastback, but I can't afford one of those right now.

I am looking at a clean, rust free, good running 79 Volare coupe with a slant six and column shifted automatic. The asking price is $2000. What are the drawbacks of this car as the basis of a street rod with a mild 360? I would be happy with 300 hp.


Should I hold out for an A body?