Can someone tell me what model pertronix III (71281 or 71282) module I need for a 1956 Ford Crown Vic with a 312 yblock with an A1 Cardone 30-2808 remanufactured distributor which is the equivalent to the 1964 F100 yblock distributor? Pertronix tech said that he thinks the 71282 module is for the mid-fifties Ford yblock and that the 71281 module was for the later 1960s Ford yblock, but he isn't sure.

Thanks
Danny