I used the Summit 488 in a stock 9:1 440 good cam. The 484 will bleed compression and you will need a 3000 stall and at least 3.91's. Summit cam kits were on sale a month or so ago for $62! w/ lifters.
Why not look around? somebody is probaly selling a used stroked short block you can get for 1/2 what it costs to build.