My version of a factory parts build 318
There’s a lot in distributor timing. A recurve would do wonders. Don @
4secondsflat.com has a simple kit that works great. Limit the mechanical advance with a plate, find out him much vacuum advance is available, set the timing and your good to go.
I’d start at an initial of 15* and see what that brings me in terms of seat of the pants feel. (You could) Advance it until the starter has to work to start the engine. Then go from there. How much initial that is and then limit the mechanical a bunch.