1978 440 Help and Questions

I like to degree just to make sure it's accurate, but like he said - line up the dots (install straight up).
On the balancing - you need to pay the shop to balance the assembly. If you retain the factory balancer you will need to give him the balancer, flex plate, bolts, and convertor to balance with it. All those parts are what the factory uses to externally balance the assembly. Or - you can internally balance it, replace the balancer with a neutral version, and remove the weight from the convertor and it will be smoother.