Big Block duster

I plan on running a 727 with the big block...already have a 83/4 just have to get it cut down due to it's out of a 1966 dodge polara. I've heard stories that if you put a big block in an A body that it won't stop as well or handle as well with the added weight but I don't plan on going out and hooking corners with it anyways lol😋..I'll def look into the conversion kit for the k member...still not sure what my plans are for the car..I have a 340 that was in it at one time I'm just a big block guy and can get the 440 for free from a relative....thanks everyone for the answers they were much needed and helpful!...will keep everyone updated on my progress with the car and will post pics when it's done