Fuel octane on hp 273charger engine 10.5:1 compression .

Thanks , what I mean is , what spots to look for rust on the 60'S Darts convertible . I don't know the history of the car so I want to know where to look . Are there parts of the frame to check for stress cracks , things like that .What about electrics ,any dash probs to look for ? The more I see of these cars the more I want one .
Yeah I can see where an 11 sec car is a hand full , means 9 sec and you're at go directly to jail speeds !
Thanks

hahaha ..
rust... soft areas on torsion bar areas rear spring perches ,floor boards and trunk floor.
electrics are usually Good all over.