70 340 block/ 73 crank and balancer

Yes it does. Know where I can get those pulleys for a ac car

The pulleys you want would be off any 318/340/360 from 70 up till like 78 or so. The balancer has nothing to do with your pulley setup. Look up member "whitepunkonnitro" on this site, send him a PM, and he can hook you up with all the pulleys, brackets, spacers ect at one shot! Not expensive that way either.