A lot of folks seem to like the Pertronix HEI conversion, I haven't used one. I prefer the factory HEI, as it is easier to recurve the advance. You'll have to change the wire to the coil for 12 volts. May want to change the coil to a performance coil. Standard use to make a really cool looking, about 4-5 inches in diameter and finned. My 2 cents.
Larry
68 C20 327 daily driver
63 C20 292 Camper truck
65 C10 ? Custom Cab AC,PB,PS,$flasher
