new heads or stroker kit

hey guys just wondering what would benefit me more. combo is a stock stroke 360 with 2.02 x heads, performer rpm intake, 650 holley and a comp cams cam with 477 lift, 727 torqueflite with around 2500 stall. do you think this package would benefit more from a pair of edelbrock cylinder heads or a 408 stroker kit. since they are abotut the same price range? thanks in advance
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