What to do with a 400

My stock 400 4bbl charger would easy out run my 383 roadrunner both had 3.23 gears. Never got beat by a stock 383 and beat a couple 440s. shave the heads .050 and intake side .060 and run a hughes wiplash cam or 268 extreme should run good. Use .020 shim head gaskets. If the bores are good do rings and bearings. Cheap build to get you by till you get money for the stroker.