My 67 parts book lists the following for the distributor assembly:
440 w/o CAP, 1-4bbl Carb, H/Perf, Manual Trans, Dual-point
Distributor Identification Stamped (Complete) 2642 899 IBS-4006Z
Replacement Assy (Partial, Less Cap & rotor) 2875 227 IBS-4006ZS
440 w/CAP, 1-4bblCarb, H/Perf, Manual Trans, Dual-point
Distributor Identification Stamped (Complete) 2642 911 IBS-4006Y
Replacement Assy (Partial, Less Cap & rotor) 2875 229 IBS-4006YS