I only know the autolite brand by heart, so it would be a AL606 or AL605 plug. Whatever they have on hand. AL605 is like partly a step cooler and works just the same.
I don't remember the NGK numbers, but autolites are stupid cheap at like 1.50 a pop or something. I always remember paying like 12 bucks for 6 plugs, and drop the gap to like .050 to .055, the factory .060 gap always felt too big for running boost. (complete personal opinion there)