I think some of the aftermarket boxes from Standard Motor were blue or silver.. But as long as they have the (4) pin connector U should be fine. However note that I have found that certain ignition boxes have more latency than others so I would recommend that after installing double check the ignition timing.
as i am aware, most if not all, 4 pin boxes will work. but as has been mentioned, check your timing, as some boxes can retard timing more than you think. i don't remember any box that advanced timing, although it may be possible ?
as i am aware, most if not all, 4 pin boxes will work. but as has been mentioned, check your timing, as some boxes can retard timing more than you think. i don't remember any box that advanced timing, although it may be possible ?
If you replcaced a box that retarded a lot with one that retarded less the end result would be advanced timing