Have a 68 Shelby 500 428 C.I. engine single set of points . Anyone tell me what to set the points at. The original owners manual says .021 The Haynes Mustang manual says .017 . Any feedback appreciated.---S.
Some of this will depend on where you engine will be "happy" I would start @ 19 and see how she reacts. Or maybe even better , throw them in a bag and install a pertronics unit and coil.