That is a hard question to answer, but since I like chevys beter, I would say the Chevy. The reason it is hard to answer, is that one could have a small block and the other have a big block. Or if...
The Mustang is faster than the Camaro. Whether it be the V6 engines or the GT/SS V8 models. The Ford Mustang GT has a 0-60 mph time of 4.3 seconds. The Camaro SS has a 0-60 mph time of 4.7 seconds....
Well it depends on the motor in the cars. also if you mean by factory it depends on what liter motor you have in them. But as far as factory i would say the mustang. but when it comes to mods and...