straight 6

sup guys not posted on here in a while been overloaded at work. got a few questions im hoping some folk can help me clear up. im buying a 1965 mustang with a 3.2 straight 6 engine and im wanting to get it tuned to a nice balance between mpg and bhp. im ideally looking for 25+mpg if possible...

Hi. I have only had my Chevy a few months and I don't know much about mechanic stuff, so please don't be offended by my description or use of words for my question..... After a look under my 53 Chevy Bel Air I have noticed that the muffler may need replacing. It has a couple of holes around...