I ran the piss out of my 7 1/4 with a 360/727 and it never let me down. The guy that got the car is still running it. As long as you don't beat on it hard it will be fine.
Looks like a clean car.
wow you must of had a tough one.I blew one up in my brothers factory 318 2V 74 dart not even trying lol . broke the spider gears. to the op great looking car i have a 73 duster that i put the front end off a 72 on it. its getting the 440 etc out of my 73 dart. look forward to more pics of your car.mopar65