Please advise: 1984 Topps football rack packs vs box

I'm looking into purchasing either a box of 84 Topps Football or a couple of rack packs. I was just wondering what a box yields roughly in terms of Marino and Elway rookies? Also, are the rookie cards of these guys more likely, less likely or just as likely to appear in the rack packs vs the packs? I figured that since rack packs have 54 cards, it would roughly equal 4 packs, actually a little less than 4 packs. One final question, , is there any other advice you would give before spending the money on either rack packs or wax of this year? I appreciate any and all responses. I really have the urge to crack a box or some rack packs; however, not knowing the above info, I do not want to be taken. Thanks!
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Brian
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