1963 426 stgII max wedge

Correct, the '62 was just the Super Stock and Ramcharger race package. The early 426 MW was just that, no stage reference yet until June when the Stage 2 pkg was announced, therefore, most folks call the pre-June, '63 MW cars as being Stage 1 equipped. The '63 Stage 3 intake is visually different when compared side by side from any of the earlier castings. The 413 MW through May '63 426 Stage 1 and 2 intakes are 100% the same part, except for the larger primary bores.