I've used the MSD 6AL with a stock, recurved magnetic pickup Mopar distributor combo for 20 years.
Stone reliable and you can get all the parts at the local parts house.
Having a rev limiter and things like timing control is all the more reason to convert.
'63 Dodge 330 11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs. 10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.