273????

Depends on what you want to do with the car.

1. Roast the tires down the street.
2. Daily driver.

I have a '67 Commando Barracuda which I drive daily. I love it and wouldn't have it any other way. It gets about 20 mpg and has plenty of passing poop. Plus, it's nice and quiet for driving around town so I can also listen to music or talk to the person in the car with me.

I also have a '64 Barracuda with a 340. It's mildly built, so it's fun to thrash on. I like to not have to drive it all the time though for economical reasons, and consideration of my nervous system. I guess that makes me old. I don't want to always be driving a car that chomping at the bit.