They both perform well as said. Points need adjusting and replacement, dual point being a little more to deal with but not bad. I had a dual point tach drive Mallory in the 62 when I bought it, converted it to a unilite keeping the dual point and when I pulled and built the engine I went with a total MSD ignition. It's a matter of preference. I'm built similar to Waterboy with a difference here and there;
327 .030 over
12.5 comp.
Trick Flow aluminum 23 degree 64cc port matched
524 lift 234/244 duration solids
1.5 rollers
air gap intake
750 dbl. pump total MSD
Richmond Gear Super T10 4 spd
4:11 posi
Does it run, you'd have to ask others, I'm opinionated